חתימה ביולוגית (Hebrew Wikipedia)

Analysis of information sources in references of the Wikipedia article "חתימה ביולוגית" in Hebrew language version.

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archive.org

Chambers, Paul (1999). Life on Mars; The Complete Story. London: Blandford. ISBN 0-7137-2747-0.

arxiv.org

Luger R, Barnes R (בפברואר 2015). "Extreme water loss and abiotic O2 buildup on planets throughout the habitable zones of M dwarfs". Astrobiology. 15 (2): 119–43. arXiv:1411.7412. Bibcode:2015AsBio..15..119L. doi:10.1089/ast.2014.1231. PMC 4323125. PMID 25629240. {{cite journal}}: (עזרה)
Wordsworth, Robin; Pierrehumbert, Raymond (1 באפריל 2014). "Abiotic oxygen-dominated atmospheres on terrestrial habitable zone planets". The Astrophysical Journal. 785 (2): L20. arXiv:1403.2713. Bibcode:2014ApJ...785L..20W. doi:10.1088/2041-8205/785/2/L20. {{cite journal}}: (עזרה)
Reinhard, Christopher T.; Olson, Stephanie L.; Schwieterman, Edward W.; Lyons, Timothy W. (באפריל 2017). "False Negatives for Remote Life Detection on Ocean-Bearing Planets: Lessons from the Early Earth". Astrobiology. 17 (4): 287–297. arXiv:1702.01137. Bibcode:2017AsBio..17..287R. doi:10.1089/ast.2016.1598. PMC 5399744. PMID 28418704. {{cite journal}}: (עזרה)
Lisse, Carey (2020). "A Geologically Robust Procedure for Observing Rocky Exoplanets to Ensure that Detection of Atmospheric Oxygen Is a Modern Earth-like Biosignature". Astrophysical Journal Letters. 898 (577): L17. arXiv:2006.07403. Bibcode:2020ApJ...898L..17L. doi:10.3847/2041-8213/ab9b91.
DasSarma, Shiladitya; Schwieterman, Edward W. (2018). "Early evolution of purple retinal pigments on Earth and implications for exoplanet biosignatures". International Journal of Astrobiology (באנגלית). 20 (3): 1–10. arXiv:1810.05150. Bibcode:2018arXiv181005150D. doi:10.1017/S1473550418000423. ISSN 1473-5504.
Krissansen-Totton J, Schwieterman EW, Charnay B, Arney G, Robinson TD, Meadows V, Catling DC (בינואר 2016). "Is the Pale Blue Dot unique? Optimized photometric bands for identifying Earth-like exoplanets". The Astrophysical Journal. 817 (1): 31. arXiv:1512.00502. Bibcode:2016ApJ...817...31K. doi:10.3847/0004-637X/817/1/31. {{cite journal}}: (עזרה)
O'Malley-James, Jack T; Kaltenegger, Lisa (2019). "Biofluorescent Worlds – II. Biological fluorescence induced by stellar UV flares, a new temporal biosignature". Monthly Notices of the Royal Astronomical Society. 488 (4): 4530–4545. arXiv:1608.06930. Bibcode:2019MNRAS.488.4530O. doi:10.1093/mnras/stz1842.
Brogi M, Snellen IA, de Kok RJ, Albrecht S, Birkby J, de Mooij EJ (ביוני 2012). "The signature of orbital motion from the dayside of the planet τ Boötis b". Nature. 486 (7404): 502–4. arXiv:1206.6109. Bibcode:2012Natur.486..502B. doi:10.1038/nature11161. PMID 22739313. {{cite journal}}: (עזרה)
Krissansen-Totton J, Olson S, Catlig DC (24 בינואר 2018). "Disequilibrium biosignatures over Earth history and implications for detecting exoplanet life". Science Advances. 4: eaao5747. arXiv:1801.08211. Bibcode:2018SciA....4.5747K. doi:10.1126/sciadv.aao5747. PMC 5787383. PMID 29387792. {{cite journal}}: (עזרה)
Arney, Giada N. (במרץ 2019). "The K Dwarf Advantage for Biosignatures on Directly Imaged Exoplanets". The Astrophysical Journal. 873 (1): L7. arXiv:2001.10458. Bibcode:2019ApJ...873L...7A. doi:10.3847/2041-8213/ab0651. ISSN 2041-8205. {{cite journal}}: (עזרה)
Krissansen-Totton J, Bergsman DS, Catling DC (בינואר 2016). "On Detecting Biospheres from Chemical Thermodynamic Disequilibrium in Planetary Atmospheres". Astrobiology. 16 (1): 39–67. arXiv:1503.08249. Bibcode:2016AsBio..16...39K. doi:10.1089/ast.2015.1327. PMID 26789355. {{cite journal}}: (עזרה)
Krissansen-Totton J, Arney GN, Catling DC (באפריל 2018). "Constraining the climate and ocean pH of the early Earth with a geological carbon cycle model". Proceedings of the National Academy of Sciences of the United States of America. 115 (16): 4105–4110. arXiv:1804.00763. Bibcode:2018PNAS..115.4105K. doi:10.1073/pnas.1721296115. PMC 5910859. PMID 29610313. {{cite journal}}: (עזרה)
Catling DC, Krissansen-Totton J, Kiang NY, Crisp D, Robinson TD, DasSarma S, et al. (ביוני 2018). "Exoplanet Biosignatures: A Framework for Their Assessment". Astrobiology. 18 (6): 709–738. arXiv:1705.06381. Bibcode:2018AsBio..18..709C. doi:10.1089/ast.2017.1737. PMC 6049621. PMID 29676932. {{cite journal}}: (עזרה)
Sholes SF, Krissansen-Totton J, Catling DC (במאי 2019). "2 as Potential Antibiosignatures". Astrobiology. 19 (5): 655–668. arXiv:1811.08501. Bibcode:2019AsBio..19..655S. doi:10.1089/ast.2018.1835. PMID 30950631. {{cite journal}}: (עזרה)
MacKenzie SM, Caswell TE, Phillips-Lander CM, Stavros EN, Hofgartner JD, Sun VZ, Powell KE, Steuer CJ, O'Rourke JG, Dhaliwal JK, Leung CW (2016-09-15). "THEO concept mission: Testing the Habitability of Enceladus's Ocean". Advances in Space Research. 58 (6): 1117–1137. arXiv:1605.00579. Bibcode:2016AdSpR..58.1117M. doi:10.1016/j.asr.2016.05.037. ISSN 0273-1177.
Anglada-Escudé, Guillem; Amado, Pedro J.; Barnes, John; et al. (2016). "A terrestrial planet candidate in a temperate orbit around Proxima Centauri". Nature. 536 (7617): 437–440. arXiv:1609.03449. Bibcode:2016Natur.536..437A. doi:10.1038/nature19106. PMID 27558064.
Meadows VS, Arney GN, Schwieterman EW, Lustig-Yaeger J, Lincowski AP, Robinson T, et al. (בפברואר 2018). "The Habitability of Proxima Centauri b: Environmental States and Observational Discriminants". Astrobiology. 18 (2): 133–189. arXiv:1608.08620. Bibcode:2018AsBio..18..133M. doi:10.1089/ast.2016.1589. PMC 5820795. PMID 29431479. {{cite journal}}: (עזרה)
Lincowski AP, Meadows VS, Lustig-Yaeger J (2019-05-17). "The Detectability and Characterization of the TRAPPIST-1 Exoplanet Atmospheres with JWST". The Astronomical Journal. 158 (1): 27. arXiv:1905.07070v1. Bibcode:2019AJ....158...27L. doi:10.3847/1538-3881/ab21e0.

bbc.com

Amos, Jonathan (2014-04-03). "Saturn moon hides 'great lake'". נבדק ב-2019-06-07.

berkeley.edu

eoa.ssl.berkeley.edu

"EOA – Enceladus Organic Analyzer". נבדק ב-2019-06-07.

caltech.edu

authors.library.caltech.edu

Porco CC, Helfenstein P, Thomas PC, Ingersoll AP, Wisdom J, West R, et al. (במרץ 2006). "Cassini observes the active south pole of Enceladus" (PDF). Science. 311 (5766): 1393–401. Bibcode:2006Sci...311.1393P. doi:10.1126/science.1123013. PMID 16527964. {{cite journal}}: (עזרה)
Iess, L.; Stevenson, D. J.; Parisi, M.; Hemingway, D.; Jacobson, R.A.; Lunine, Jonathan I.; Nimmo, F.; Armstrong, J. W.; Asmar, S. W.; Ducci, M.; Tortora, P. (4 באפריל 2014). "The Gravity Field and Interior Structure of Enceladus" (PDF). Science. 344: 78–80. Bibcode:2014Sci...344...78I. doi:10.1126/science.1250551. PMID 24700854. {{cite journal}}: (עזרה)

cambridge.org

DasSarma, Shiladitya; Schwieterman, Edward W. (2018). "Early evolution of purple retinal pigments on Earth and implications for exoplanet biosignatures". International Journal of Astrobiology (באנגלית). 20 (3): 1–10. arXiv:1810.05150. Bibcode:2018arXiv181005150D. doi:10.1017/S1473550418000423. ISSN 1473-5504.

cornellcollege.edu

Schopf JW, Kudryavtsev AB, Czaja AD, Tripathi AB (28 באפריל 2007). "Evidence of Archean life: Stromatolites and microfossils" (PDF). Precambrian Research. 158 (3–4): 141–155. Bibcode:2007PreR..158..141S. doi:10.1016/j.precamres.2007.04.009. אורכב מ-המקור (PDF) ב-2012-12-24. נבדק ב-2013-01-15. {{cite journal}}: (עזרה)

crcpress.com

Niessen, Wilfried M.A. (2001). Current Practice of gas chromatography-mass spectrometry (1 ed.). pp. 55–94.

cyberlipid.org

"Fatty alcohols". אורכב מ-המקור ב-2012-06-25. נבדק ב-2006-04-01.

doi.org

Domagal-Goldman SD, Meadows VS, Claire MW, Kasting JF (ביוני 2011). "Using biogenic sulfur gases as remotely detectable biosignatures on anoxic planets". Astrobiology. 11 (5): 419–41. Bibcode:2011AsBio..11..419D. doi:10.1089/ast.2010.0509. PMC 3133782. PMID 21663401. {{cite journal}}: (עזרה)
Seager S, Schrenk M, Bains W (בינואר 2012). "An astrophysical view of Earth-based metabolic biosignature gases". Astrobiology. 12 (1): 61–82. Bibcode:2012AsBio..12...61S. doi:10.1089/ast.2010.0489. PMID 22269061. {{cite journal}}: (עזרה)
Meadows VS (באוקטובר 2017). "2 as a Biosignature in Exoplanetary Atmospheres". Astrobiology. 17 (10): 1022–1052. doi:10.1089/ast.2016.1578. PMC 5655594. PMID 28443722. {{cite journal}}: (עזרה)
Ver Eecke HC, Butterfield DA, Huber JA, Lilley MD, Olson EJ, Roe KK, et al. (באוגוסט 2012). "Hydrogen-limited growth of hyperthermophilic methanogens at deep-sea hydrothermal vents". Proceedings of the National Academy of Sciences of the United States of America. 109 (34): 13674–9. Bibcode:2012PNAS..10913674V. doi:10.1073/pnas.1206632109. PMC 3427048. PMID 22869718. {{cite journal}}: (עזרה)
Szostak J (במאי 2018). "How Did Life Begin?". Nature. 557 (7704): S13–S15. Bibcode:2018Natur.557S..13S. doi:10.1038/d41586-018-05098-w. PMID 29743709. {{cite journal}}: (עזרה)
Ward, Colin R.; Walter, Malcolm R.; Campbell, Kathleen A.; Kranendonk, Martin J. Van; Djokic, Tara (2017-05-09). "Earliest signs of life on land preserved in ca. 3.5 Ga hot spring deposits". Nature Communications (באנגלית). 8: 15263. Bibcode:2017NatCo...815263D. doi:10.1038/ncomms15263. ISSN 2041-1723. PMC 5436104. PMID 28486437.
Luger R, Barnes R (בפברואר 2015). "Extreme water loss and abiotic O2 buildup on planets throughout the habitable zones of M dwarfs". Astrobiology. 15 (2): 119–43. arXiv:1411.7412. Bibcode:2015AsBio..15..119L. doi:10.1089/ast.2014.1231. PMC 4323125. PMID 25629240. {{cite journal}}: (עזרה)
Wordsworth, Robin; Pierrehumbert, Raymond (1 באפריל 2014). "Abiotic oxygen-dominated atmospheres on terrestrial habitable zone planets". The Astrophysical Journal. 785 (2): L20. arXiv:1403.2713. Bibcode:2014ApJ...785L..20W. doi:10.1088/2041-8205/785/2/L20. {{cite journal}}: (עזרה)
Reinhard, Christopher T.; Olson, Stephanie L.; Schwieterman, Edward W.; Lyons, Timothy W. (באפריל 2017). "False Negatives for Remote Life Detection on Ocean-Bearing Planets: Lessons from the Early Earth". Astrobiology. 17 (4): 287–297. arXiv:1702.01137. Bibcode:2017AsBio..17..287R. doi:10.1089/ast.2016.1598. PMC 5399744. PMID 28418704. {{cite journal}}: (עזרה)
Bosak, Tanja; Souza-Egipsy, Virginia; Corsetti, Frank A.; Newman, Dianne K. (2004). "Micrometer-scale porosity as a biosignature in carbonate crusts". Geology. 32 (9): 781. Bibcode:2004Geo....32..781B. doi:10.1130/G20681.1.
McKay DS, Gibson EK, Thomas-Keprta KL, Vali H, Romanek CS, Clemett SJ, et al. (באוגוסט 1996). "Search for past life on Mars: possible relic biogenic activity in martian meteorite ALH84001". Science. 273 (5277): 924–30. Bibcode:1996Sci...273..924M. doi:10.1126/science.273.5277.924. PMID 8688069. {{cite journal}}: (עזרה)
Friedmann EI, Wierzchos J, Ascaso C, Winklhofer M (בפברואר 2001). "Chains of magnetite crystals in the meteorite ALH84001: evidence of biological origin". Proceedings of the National Academy of Sciences of the United States of America. 98 (5): 2176–81. doi:10.1073/pnas.051514698. PMC 30112. PMID 11226212. {{cite journal}}: (עזרה)
Thomas-Keprta KL, Clemett SJ, Bazylinski DA, Kirschvink JL, McKay DS, Wentworth SJ, et al. (בפברואר 2001). "Truncated hexa-octahedral magnetite crystals in ALH84001: presumptive biosignatures". Proceedings of the National Academy of Sciences of the United States of America. 98 (5): 2164–9. doi:10.1073/pnas.051500898. PMC 30110. PMID 11226210. {{cite journal}}: (עזרה)
McSween, Harry Y. (2019), "The Search for Biosignatures in Martian Meteorite Allan Hills 84001", in Cavalazzi, Barbara; Westall, Frances (eds.), Biosignatures for Astrobiology, Advances in Astrobiology and Biogeophysics, Springer International Publishing, pp. 167–182, doi:10.1007/978-3-319-96175-0_8, ISBN 978-3-319-96175-0
Garcia-Ruiz JG (30 בדצמבר 1999). "Morphological behavior of inorganic precipitation systems – Instruments, Methods, and Missions for Astrobiology II". SPIE Proceedings. Instruments, Methods, and Missions for Astrobiology II. Proc. SPIE 3755: 74. doi:10.1117/12.375088. It is concluded that "morphology cannot be used unambiguously as a tool for primitive life detection". {{cite journal}}: (עזרה)
Schopf JW, Kudryavtsev AB, Czaja AD, Tripathi AB (28 באפריל 2007). "Evidence of Archean life: Stromatolites and microfossils" (PDF). Precambrian Research. 158 (3–4): 141–155. Bibcode:2007PreR..158..141S. doi:10.1016/j.precamres.2007.04.009. אורכב מ-המקור (PDF) ב-2012-12-24. נבדק ב-2013-01-15. {{cite journal}}: (עזרה)
Chosson, P; Lanau, C; Connan, J; Dessort, D (1991). "Biodegradation of refractory hydrocarbon biomarkers from petroleum under laboratory conditions". Nature. 351 (6328): 640–642. Bibcode:1991Natur.351..640C. doi:10.1038/351640a0. PMID 2052089.
Head, Ian M.; Jones, Martin; Larter, Steve R. (2003). "Biological activity in the deep subsurface and the origin of heavy oil" (PDF). Nature. 426 (6964): 344–352. Bibcode:2003Natur.426..344H. doi:10.1038/nature02134. PMID 14628064.
Bieger, Tilman; Hellou, Jocelyne; Abrajano Jr., Teofilou A. (1996). "Petroleum biomarkers as tracers of lubricating oil contamination". Marine Pollution Bulletin. 32 (2): 270–274. Bibcode:1996MarPB..32..270B. doi:10.1016/0025-326X(95)00151-C.
Ratnayake, Amila Sandaruwan; Sampei, Yoshikazu (2019-06-01). "Organic geochemical evaluation of contamination tracers in deepwater well rock cuttings from the Mannar Basin, Sri Lanka". Journal of Petroleum Exploration and Production Technology (באנגלית). 9 (2): 989–996. doi:10.1007/s13202-018-0575-8. ISSN 2190-0566.
Lisse, Carey (2020). "A Geologically Robust Procedure for Observing Rocky Exoplanets to Ensure that Detection of Atmospheric Oxygen Is a Modern Earth-like Biosignature". Astrophysical Journal Letters. 898 (577): L17. arXiv:2006.07403. Bibcode:2020ApJ...898L..17L. doi:10.3847/2041-8213/ab9b91.
DasSarma, Shiladitya; Schwieterman, Edward W. (2018). "Early evolution of purple retinal pigments on Earth and implications for exoplanet biosignatures". International Journal of Astrobiology (באנגלית). 20 (3): 1–10. arXiv:1810.05150. Bibcode:2018arXiv181005150D. doi:10.1017/S1473550418000423. ISSN 1473-5504.
Berdyugina SV, Kuhn J, Harrington D, Santl-Temkiv T, Messersmith EJ (בינואר 2016). "Remote sensing of life: polarimetric signatures of photosynthetic pigments as sensitive biomarkers". International Journal of Astrobiology. 15 (1): 45–56. Bibcode:2016IJAsB..15...45B. doi:10.1017/S1473550415000129. {{cite journal}}: (עזרה)
Hegde S, Paulino-Lima IG, Kent R, Kaltenegger L, Rothschild L (במרץ 2015). "Surface biosignatures of exo-earths: remote detection of extraterrestrial life". Proceedings of the National Academy of Sciences of the United States of America. 112 (13): 3886–91. Bibcode:2015PNAS..112.3886H. doi:10.1073/pnas.1421237112. PMC 4386386. PMID 25775594. {{cite journal}}: (עזרה)
Claudi, R.; Erculiani, M. S.; Galletta, G.; Billi, D.; Pace, E.; Schierano, D.; Giro, E.; D'Alessandro, M. (20 במאי 2015). "Simulating super earth atmospheres in the laboratory". International Journal of Astrobiology. 15 (1): 35–44. doi:10.1017/S1473550415000117. {{cite journal}}: (עזרה)
Krissansen-Totton J, Schwieterman EW, Charnay B, Arney G, Robinson TD, Meadows V, Catling DC (בינואר 2016). "Is the Pale Blue Dot unique? Optimized photometric bands for identifying Earth-like exoplanets". The Astrophysical Journal. 817 (1): 31. arXiv:1512.00502. Bibcode:2016ApJ...817...31K. doi:10.3847/0004-637X/817/1/31. {{cite journal}}: (עזרה)
O'Malley-James, Jack T; Kaltenegger, Lisa (2019). "Biofluorescent Worlds – II. Biological fluorescence induced by stellar UV flares, a new temporal biosignature". Monthly Notices of the Royal Astronomical Society. 488 (4): 4530–4545. arXiv:1608.06930. Bibcode:2019MNRAS.488.4530O. doi:10.1093/mnras/stz1842.
Brogi M, Snellen IA, de Kok RJ, Albrecht S, Birkby J, de Mooij EJ (ביוני 2012). "The signature of orbital motion from the dayside of the planet τ Boötis b". Nature. 486 (7404): 502–4. arXiv:1206.6109. Bibcode:2012Natur.486..502B. doi:10.1038/nature11161. PMID 22739313. {{cite journal}}: (עזרה)
Seager S, Bains W, Petkowski JJ (ביוני 2016). "Toward a List of Molecules as Potential Biosignature Gases for the Search for Life on Exoplanets and Applications to Terrestrial Biochemistry" (PDF). Astrobiology. 16 (6): 465–85. Bibcode:2016AsBio..16..465S. doi:10.1089/ast.2015.1404. PMID 27096351. {{cite journal}}: (עזרה)
Krissansen-Totton J, Olson S, Catlig DC (24 בינואר 2018). "Disequilibrium biosignatures over Earth history and implications for detecting exoplanet life". Science Advances. 4: eaao5747. arXiv:1801.08211. Bibcode:2018SciA....4.5747K. doi:10.1126/sciadv.aao5747. PMC 5787383. PMID 29387792. {{cite journal}}: (עזרה)
Arney, Giada N. (במרץ 2019). "The K Dwarf Advantage for Biosignatures on Directly Imaged Exoplanets". The Astrophysical Journal. 873 (1): L7. arXiv:2001.10458. Bibcode:2019ApJ...873L...7A. doi:10.3847/2041-8213/ab0651. ISSN 2041-8205. {{cite journal}}: (עזרה)
Krissansen-Totton J, Bergsman DS, Catling DC (בינואר 2016). "On Detecting Biospheres from Chemical Thermodynamic Disequilibrium in Planetary Atmospheres". Astrobiology. 16 (1): 39–67. arXiv:1503.08249. Bibcode:2016AsBio..16...39K. doi:10.1089/ast.2015.1327. PMID 26789355. {{cite journal}}: (עזרה)
Lovelock James Ephraim; Kaplan I. R.; Pirie Norman Wingate (1975-05-06). "Thermodynamics and the recognition of alien biospheres". Proceedings of the Royal Society of London. Series B. Biological Sciences. 189 (1095): 167–181. Bibcode:1975RSPSB.189..167L. doi:10.1098/rspb.1975.0051.
Krissansen-Totton J, Arney GN, Catling DC (באפריל 2018). "Constraining the climate and ocean pH of the early Earth with a geological carbon cycle model". Proceedings of the National Academy of Sciences of the United States of America. 115 (16): 4105–4110. arXiv:1804.00763. Bibcode:2018PNAS..115.4105K. doi:10.1073/pnas.1721296115. PMC 5910859. PMID 29610313. {{cite journal}}: (עזרה)
Benner SA (בדצמבר 2010). "Defining life". Astrobiology. 10 (10): 1021–30. Bibcode:2010AsBio..10.1021B. doi:10.1089/ast.2010.0524. PMC 3005285. PMID 21162682. {{cite journal}}: (עזרה)
National Academies Of Sciences Engineering; Division on Engineering Physical Sciences; Space Studies Board; Committee on Astrobiology Science Strategy for the Search for Life in the Universe (2019). Read "An Astrobiology Strategy for the Search for Life in the Universe" at NAP.edu. doi:10.17226/25252. ISBN 978-0-309-48416-9. PMID 30986006.
Benner, Steven A.; Hutter, Daniel (2002-02-01). "Phosphates, DNA, and the Search for Nonterrean Life: A Second Generation Model for Genetic Molecules". Bioorganic Chemistry (באנגלית). 30 (1): 62–80. doi:10.1006/bioo.2001.1232.
Špaček, Jan; Benner, Steven A. (2022-10-01). "Agnostic Life Finder (ALF) for Large-Scale Screening of Martian Life During In Situ Refueling". Astrobiology (באנגלית). 22 (10): 1255–1263. doi:10.1089/ast.2021.0070. ISSN 1531-1074.
Benner, Steven A. (2017). "Detecting Darwinism from Molecules in the Enceladus Plumes, Jupiter's Moons, and Other Planetary Water Lagoons". Astrobiology. 17 (9): 840–851. doi:10.1089/ast.2016.1611. ISSN 1531-1074. PMC 5610385.
Sutton, Mark A.; Burton, Aaron S.; Zaikova, Elena; Sutton, Ryan E.; Brinckerhoff, William B.; Bevilacqua, Julie G.; Weng, Margaret M.; Mumma, Michael J.; Johnson, Sarah Stewart (2019-03-29). "Radiation Tolerance of Nanopore Sequencing Technology for Life Detection on Mars and Europa". Scientific Reports. 9 (1). doi:10.1038/s41598-019-41488-4. ISSN 2045-2322. PMC 6441015.
Catling DC, Krissansen-Totton J, Kiang NY, Crisp D, Robinson TD, DasSarma S, et al. (ביוני 2018). "Exoplanet Biosignatures: A Framework for Their Assessment". Astrobiology. 18 (6): 709–738. arXiv:1705.06381. Bibcode:2018AsBio..18..709C. doi:10.1089/ast.2017.1737. PMC 6049621. PMID 29676932. {{cite journal}}: (עזרה)
Wang Y, Tian F, Li T, Hu Y (2016-03-01). "On the detection of carbon monoxide as an anti-biosignature in exoplanetary atmospheres". Icarus. 266: 15–23. Bibcode:2016Icar..266...15W. doi:10.1016/j.icarus.2015.11.010. ISSN 0019-1035.
Sholes SF, Krissansen-Totton J, Catling DC (במאי 2019). "2 as Potential Antibiosignatures". Astrobiology. 19 (5): 655–668. arXiv:1811.08501. Bibcode:2019AsBio..19..655S. doi:10.1089/ast.2018.1835. PMID 30950631. {{cite journal}}: (עזרה)
Klein HP, Horowitz NH, Levin GV, Oyama VI, Lederberg J, Rich A, et al. (באוקטובר 1976). "The viking biological investigation: preliminary results". Science. 194 (4260): 99–105. Bibcode:1976Sci...194...99K. doi:10.1126/science.194.4260.99. PMID 17793090. {{cite journal}}: (עזרה)
Fortes AD (2000-08-01). "Exobiological Implications of a Possible Ammonia–Water Ocean inside Titan". Icarus. 146 (2): 444–452. Bibcode:2000Icar..146..444F. doi:10.1006/icar.2000.6400. ISSN 0019-1035.
Grasset O, Sotin C, Deschamps F (2000-06-01). "On the internal structure and dynamics of Titan". Planetary and Space Science. 48 (7): 617–636. Bibcode:2000P&SS...48..617G. doi:10.1016/S0032-0633(00)00039-8. ISSN 0032-0633.
Gudipati MS, Jacovi R, Couturier-Tamburelli I, Lignell A, Allen M (2013-04-03). "Photochemical activity of Titan's low-altitude condensed haze". Nature Communications. 4: 1648. Bibcode:2013NatCo...4.1648G. doi:10.1038/ncomms2649. PMID 23552063.
Smith BA, Soderblom LA, Johnson TV, Ingersoll AP, Collins SA, Shoemaker EM, et al. (ביוני 1979). "The jupiter system through the eyes of voyager 1". Science. 204 (4396): 951–72. Bibcode:1979Sci...204..951S. doi:10.1126/science.204.4396.951. PMID 17800430. {{cite journal}}: (עזרה)
Kivelson MG, Khurana KK, Russell CT, Volwerk M, Walker RJ, Zimmer C (באוגוסט 2000). "Galileo magnetometer measurements: a stronger case for a subsurface ocean at Europa". Science. 289 (5483): 1340–3. Bibcode:2000Sci...289.1340K. doi:10.1126/science.289.5483.1340. PMID 10958778. {{cite journal}}: (עזרה)
Phillips CB, Pappalardo RT (2014-05-20). "Europa Clipper Mission Concept: Exploring Jupiter's Ocean Moon". Eos, Transactions American Geophysical Union. 95 (20): 165–167. Bibcode:2014EOSTr..95..165P. doi:10.1002/2014EO200002.
Porco CC, Helfenstein P, Thomas PC, Ingersoll AP, Wisdom J, West R, et al. (במרץ 2006). "Cassini observes the active south pole of Enceladus" (PDF). Science. 311 (5766): 1393–401. Bibcode:2006Sci...311.1393P. doi:10.1126/science.1123013. PMID 16527964. {{cite journal}}: (עזרה)
Postberg F, Schmidt J, Hillier J, Kempf S, Srama R (ביוני 2011). "A salt-water reservoir as the source of a compositionally stratified plume on Enceladus". Nature. 474 (7353): 620–2. Bibcode:2011Natur.474..620P. doi:10.1038/nature10175. PMID 21697830. {{cite journal}}: (עזרה)
Witze, Alexandra (2014). "Icy Enceladus hides a watery ocean". Nature News. doi:10.1038/nature.2014.14985.
Iess, L.; Stevenson, D. J.; Parisi, M.; Hemingway, D.; Jacobson, R.A.; Lunine, Jonathan I.; Nimmo, F.; Armstrong, J. W.; Asmar, S. W.; Ducci, M.; Tortora, P. (4 באפריל 2014). "The Gravity Field and Interior Structure of Enceladus" (PDF). Science. 344: 78–80. Bibcode:2014Sci...344...78I. doi:10.1126/science.1250551. PMID 24700854. {{cite journal}}: (עזרה)
Reh, K.; Spilker, L.; Lunine, Jonathan I.; Waite Jr., Jack Hunter; Cable, M. L.; Postberg, Frank; Clark, K. (במרץ 2016). "Enceladus Life Finder: The search for life in a habitable Moon". 2016 IEEE Aerospace Conference. pp. 1–8. doi:10.1109/AERO.2016.7500813. ISBN 978-1-4673-7676-1. {{cite book}}: (עזרה)
Konstantinidis, Konstantinos; Flores Martinez, Claudio L.; Dachwald, Bernd; Ohndorf, Andreas; Dykta, Paul; Bowitz, Pascal; Rudolph, Martin; Digel, Ilya; Kowalski, Julia; Voigt, Konstantin; Förstner, Roger (בינואר 2015). "A lander mission to probe subglacial water on Saturn׳s moon Enceladus for life". Acta Astronautica. 106: 63–89. Bibcode:2015AcAau.106...63K. doi:10.1016/j.actaastro.2014.09.012. {{cite journal}}: (עזרה)
Tsou P, Brownlee DE, McKay CP, Anbar AD, Yano H, Altwegg K, et al. (באוגוסט 2012). "LIFE: Life Investigation For Enceladus A Sample Return Mission Concept in Search for Evidence of Life". Astrobiology. 12 (8): 730–42. Bibcode:2012AsBio..12..730T. doi:10.1089/ast.2011.0813. PMID 22970863. {{cite journal}}: (עזרה)
MacKenzie SM, Caswell TE, Phillips-Lander CM, Stavros EN, Hofgartner JD, Sun VZ, Powell KE, Steuer CJ, O'Rourke JG, Dhaliwal JK, Leung CW (2016-09-15). "THEO concept mission: Testing the Habitability of Enceladus's Ocean". Advances in Space Research. 58 (6): 1117–1137. arXiv:1605.00579. Bibcode:2016AdSpR..58.1117M. doi:10.1016/j.asr.2016.05.037. ISSN 0273-1177.
Sherwood B (2016-09-01). "Strategic map for exploring the ocean-world Enceladus". Acta Astronautica. Space Flight Safety. 126: 52–58. Bibcode:2016AcAau.126...52S. doi:10.1016/j.actaastro.2016.04.013. ISSN 0094-5765.
Anglada-Escudé, Guillem; Amado, Pedro J.; Barnes, John; et al. (2016). "A terrestrial planet candidate in a temperate orbit around Proxima Centauri". Nature. 536 (7617): 437–440. arXiv:1609.03449. Bibcode:2016Natur.536..437A. doi:10.1038/nature19106. PMID 27558064.
Meadows VS, Arney GN, Schwieterman EW, Lustig-Yaeger J, Lincowski AP, Robinson T, et al. (בפברואר 2018). "The Habitability of Proxima Centauri b: Environmental States and Observational Discriminants". Astrobiology. 18 (2): 133–189. arXiv:1608.08620. Bibcode:2018AsBio..18..133M. doi:10.1089/ast.2016.1589. PMC 5820795. PMID 29431479. {{cite journal}}: (עזרה)
Lincowski AP, Meadows VS, Lustig-Yaeger J (2019-05-17). "The Detectability and Characterization of the TRAPPIST-1 Exoplanet Atmospheres with JWST". The Astronomical Journal. 158 (1): 27. arXiv:1905.07070v1. Bibcode:2019AJ....158...27L. doi:10.3847/1538-3881/ab21e0.

dx.doi.org

Benner, Steven A. (2017). "Detecting Darwinism from Molecules in the Enceladus Plumes, Jupiter's Moons, and Other Planetary Water Lagoons". Astrobiology. 17 (9): 840–851. doi:10.1089/ast.2016.1611. ISSN 1531-1074. PMC 5610385.
Sutton, Mark A.; Burton, Aaron S.; Zaikova, Elena; Sutton, Ryan E.; Brinckerhoff, William B.; Bevilacqua, Julie G.; Weng, Margaret M.; Mumma, Michael J.; Johnson, Sarah Stewart (2019-03-29). "Radiation Tolerance of Nanopore Sequencing Technology for Life Detection on Mars and Europa". Scientific Reports. 9 (1). doi:10.1038/s41598-019-41488-4. ISSN 2045-2322. PMC 6441015.

e2tmission.wordpress.com

"E2T - Explorer of Enceladus and Titan". E2T - Explorer of Enceladus and Titan. נבדק ב-2019-06-07.

elsevier.com

linkinghub.elsevier.com

Benner, Steven A.; Hutter, Daniel (2002-02-01). "Phosphates, DNA, and the Search for Nonterrean Life: A Second Generation Model for Genetic Molecules". Bioorganic Chemistry (באנגלית). 30 (1): 62–80. doi:10.1006/bioo.2001.1232.

esa.int

ExoMars rover
"Enceladus rains water onto Saturn". European Space Agency. 26 ביולי 2011. נבדק ב-2019-06-07. {{cite web}}: (עזרה)
"Cassini samples the icy spray of Enceladus' water plumes". European Space Agency. 22 ביוני 2011. נבדק ב-2019-06-07. {{cite web}}: (עזרה)

eurekalert.org

Cornell University (13 באוגוסט 2019). "Fluorescent glow may reveal hidden life in the cosmos". EurekAlert!. נבדק ב-13 באוגוסט 2019. {{cite news}}: (עזרה)

excite.com

apnews.excite.com

Chang, Alicia (9 ביולי 2013). "Panel: Next Mars rover should gather rocks, soil". Associated Press. נבדק ב-12 ביולי 2013. {{cite news}}: (עזרה)

futureplanets.blogspot.com

"Future Planetary Exploration: Proposed New Frontiers Missions". Future Planetary Exploration. 2017-08-04. אורכב מ-המקור ב-2017-09-20. נבדק ב-2019-06-07.

gov.sk.ca

publications.gov.sk.ca

Osadetz, K.G; Pasadakis, N.; Obermajer, M. (2002). "Definition and characterization of petroleum compositional families using principal component analysis of gasoline and saturate fraction composition ratios" (PDF). Energy and Resources. 1: 3–14.

harvard.edu

ui.adsabs.harvard.edu

Domagal-Goldman SD, Meadows VS, Claire MW, Kasting JF (ביוני 2011). "Using biogenic sulfur gases as remotely detectable biosignatures on anoxic planets". Astrobiology. 11 (5): 419–41. Bibcode:2011AsBio..11..419D. doi:10.1089/ast.2010.0509. PMC 3133782. PMID 21663401. {{cite journal}}: (עזרה)
Seager S, Schrenk M, Bains W (בינואר 2012). "An astrophysical view of Earth-based metabolic biosignature gases". Astrobiology. 12 (1): 61–82. Bibcode:2012AsBio..12...61S. doi:10.1089/ast.2010.0489. PMID 22269061. {{cite journal}}: (עזרה)
Ver Eecke HC, Butterfield DA, Huber JA, Lilley MD, Olson EJ, Roe KK, et al. (באוגוסט 2012). "Hydrogen-limited growth of hyperthermophilic methanogens at deep-sea hydrothermal vents". Proceedings of the National Academy of Sciences of the United States of America. 109 (34): 13674–9. Bibcode:2012PNAS..10913674V. doi:10.1073/pnas.1206632109. PMC 3427048. PMID 22869718. {{cite journal}}: (עזרה)
Szostak J (במאי 2018). "How Did Life Begin?". Nature. 557 (7704): S13–S15. Bibcode:2018Natur.557S..13S. doi:10.1038/d41586-018-05098-w. PMID 29743709. {{cite journal}}: (עזרה)
Ward, Colin R.; Walter, Malcolm R.; Campbell, Kathleen A.; Kranendonk, Martin J. Van; Djokic, Tara (2017-05-09). "Earliest signs of life on land preserved in ca. 3.5 Ga hot spring deposits". Nature Communications (באנגלית). 8: 15263. Bibcode:2017NatCo...815263D. doi:10.1038/ncomms15263. ISSN 2041-1723. PMC 5436104. PMID 28486437.
Luger R, Barnes R (בפברואר 2015). "Extreme water loss and abiotic O2 buildup on planets throughout the habitable zones of M dwarfs". Astrobiology. 15 (2): 119–43. arXiv:1411.7412. Bibcode:2015AsBio..15..119L. doi:10.1089/ast.2014.1231. PMC 4323125. PMID 25629240. {{cite journal}}: (עזרה)
Wordsworth, Robin; Pierrehumbert, Raymond (1 באפריל 2014). "Abiotic oxygen-dominated atmospheres on terrestrial habitable zone planets". The Astrophysical Journal. 785 (2): L20. arXiv:1403.2713. Bibcode:2014ApJ...785L..20W. doi:10.1088/2041-8205/785/2/L20. {{cite journal}}: (עזרה)
Reinhard, Christopher T.; Olson, Stephanie L.; Schwieterman, Edward W.; Lyons, Timothy W. (באפריל 2017). "False Negatives for Remote Life Detection on Ocean-Bearing Planets: Lessons from the Early Earth". Astrobiology. 17 (4): 287–297. arXiv:1702.01137. Bibcode:2017AsBio..17..287R. doi:10.1089/ast.2016.1598. PMC 5399744. PMID 28418704. {{cite journal}}: (עזרה)
Bosak, Tanja; Souza-Egipsy, Virginia; Corsetti, Frank A.; Newman, Dianne K. (2004). "Micrometer-scale porosity as a biosignature in carbonate crusts". Geology. 32 (9): 781. Bibcode:2004Geo....32..781B. doi:10.1130/G20681.1.
McKay DS, Gibson EK, Thomas-Keprta KL, Vali H, Romanek CS, Clemett SJ, et al. (באוגוסט 1996). "Search for past life on Mars: possible relic biogenic activity in martian meteorite ALH84001". Science. 273 (5277): 924–30. Bibcode:1996Sci...273..924M. doi:10.1126/science.273.5277.924. PMID 8688069. {{cite journal}}: (עזרה)
Schopf JW, Kudryavtsev AB, Czaja AD, Tripathi AB (28 באפריל 2007). "Evidence of Archean life: Stromatolites and microfossils" (PDF). Precambrian Research. 158 (3–4): 141–155. Bibcode:2007PreR..158..141S. doi:10.1016/j.precamres.2007.04.009. אורכב מ-המקור (PDF) ב-2012-12-24. נבדק ב-2013-01-15. {{cite journal}}: (עזרה)
Chosson, P; Lanau, C; Connan, J; Dessort, D (1991). "Biodegradation of refractory hydrocarbon biomarkers from petroleum under laboratory conditions". Nature. 351 (6328): 640–642. Bibcode:1991Natur.351..640C. doi:10.1038/351640a0. PMID 2052089.
Head, Ian M.; Jones, Martin; Larter, Steve R. (2003). "Biological activity in the deep subsurface and the origin of heavy oil" (PDF). Nature. 426 (6964): 344–352. Bibcode:2003Natur.426..344H. doi:10.1038/nature02134. PMID 14628064.
Bieger, Tilman; Hellou, Jocelyne; Abrajano Jr., Teofilou A. (1996). "Petroleum biomarkers as tracers of lubricating oil contamination". Marine Pollution Bulletin. 32 (2): 270–274. Bibcode:1996MarPB..32..270B. doi:10.1016/0025-326X(95)00151-C.
Lisse, Carey (2020). "A Geologically Robust Procedure for Observing Rocky Exoplanets to Ensure that Detection of Atmospheric Oxygen Is a Modern Earth-like Biosignature". Astrophysical Journal Letters. 898 (577): L17. arXiv:2006.07403. Bibcode:2020ApJ...898L..17L. doi:10.3847/2041-8213/ab9b91.
DasSarma, Shiladitya; Schwieterman, Edward W. (2018). "Early evolution of purple retinal pigments on Earth and implications for exoplanet biosignatures". International Journal of Astrobiology (באנגלית). 20 (3): 1–10. arXiv:1810.05150. Bibcode:2018arXiv181005150D. doi:10.1017/S1473550418000423. ISSN 1473-5504.
Berdyugina SV, Kuhn J, Harrington D, Santl-Temkiv T, Messersmith EJ (בינואר 2016). "Remote sensing of life: polarimetric signatures of photosynthetic pigments as sensitive biomarkers". International Journal of Astrobiology. 15 (1): 45–56. Bibcode:2016IJAsB..15...45B. doi:10.1017/S1473550415000129. {{cite journal}}: (עזרה)
Hegde S, Paulino-Lima IG, Kent R, Kaltenegger L, Rothschild L (במרץ 2015). "Surface biosignatures of exo-earths: remote detection of extraterrestrial life". Proceedings of the National Academy of Sciences of the United States of America. 112 (13): 3886–91. Bibcode:2015PNAS..112.3886H. doi:10.1073/pnas.1421237112. PMC 4386386. PMID 25775594. {{cite journal}}: (עזרה)
Krissansen-Totton J, Schwieterman EW, Charnay B, Arney G, Robinson TD, Meadows V, Catling DC (בינואר 2016). "Is the Pale Blue Dot unique? Optimized photometric bands for identifying Earth-like exoplanets". The Astrophysical Journal. 817 (1): 31. arXiv:1512.00502. Bibcode:2016ApJ...817...31K. doi:10.3847/0004-637X/817/1/31. {{cite journal}}: (עזרה)
O'Malley-James, Jack T; Kaltenegger, Lisa (2019). "Biofluorescent Worlds – II. Biological fluorescence induced by stellar UV flares, a new temporal biosignature". Monthly Notices of the Royal Astronomical Society. 488 (4): 4530–4545. arXiv:1608.06930. Bibcode:2019MNRAS.488.4530O. doi:10.1093/mnras/stz1842.
Brogi M, Snellen IA, de Kok RJ, Albrecht S, Birkby J, de Mooij EJ (ביוני 2012). "The signature of orbital motion from the dayside of the planet τ Boötis b". Nature. 486 (7404): 502–4. arXiv:1206.6109. Bibcode:2012Natur.486..502B. doi:10.1038/nature11161. PMID 22739313. {{cite journal}}: (עזרה)
Seager S, Bains W, Petkowski JJ (ביוני 2016). "Toward a List of Molecules as Potential Biosignature Gases for the Search for Life on Exoplanets and Applications to Terrestrial Biochemistry" (PDF). Astrobiology. 16 (6): 465–85. Bibcode:2016AsBio..16..465S. doi:10.1089/ast.2015.1404. PMID 27096351. {{cite journal}}: (עזרה)
Krissansen-Totton J, Olson S, Catlig DC (24 בינואר 2018). "Disequilibrium biosignatures over Earth history and implications for detecting exoplanet life". Science Advances. 4: eaao5747. arXiv:1801.08211. Bibcode:2018SciA....4.5747K. doi:10.1126/sciadv.aao5747. PMC 5787383. PMID 29387792. {{cite journal}}: (עזרה)
Arney, Giada N. (במרץ 2019). "The K Dwarf Advantage for Biosignatures on Directly Imaged Exoplanets". The Astrophysical Journal. 873 (1): L7. arXiv:2001.10458. Bibcode:2019ApJ...873L...7A. doi:10.3847/2041-8213/ab0651. ISSN 2041-8205. {{cite journal}}: (עזרה)
Krissansen-Totton J, Bergsman DS, Catling DC (בינואר 2016). "On Detecting Biospheres from Chemical Thermodynamic Disequilibrium in Planetary Atmospheres". Astrobiology. 16 (1): 39–67. arXiv:1503.08249. Bibcode:2016AsBio..16...39K. doi:10.1089/ast.2015.1327. PMID 26789355. {{cite journal}}: (עזרה)
Lovelock James Ephraim; Kaplan I. R.; Pirie Norman Wingate (1975-05-06). "Thermodynamics and the recognition of alien biospheres". Proceedings of the Royal Society of London. Series B. Biological Sciences. 189 (1095): 167–181. Bibcode:1975RSPSB.189..167L. doi:10.1098/rspb.1975.0051.
Krissansen-Totton J, Arney GN, Catling DC (באפריל 2018). "Constraining the climate and ocean pH of the early Earth with a geological carbon cycle model". Proceedings of the National Academy of Sciences of the United States of America. 115 (16): 4105–4110. arXiv:1804.00763. Bibcode:2018PNAS..115.4105K. doi:10.1073/pnas.1721296115. PMC 5910859. PMID 29610313. {{cite journal}}: (עזרה)
Benner SA (בדצמבר 2010). "Defining life". Astrobiology. 10 (10): 1021–30. Bibcode:2010AsBio..10.1021B. doi:10.1089/ast.2010.0524. PMC 3005285. PMID 21162682. {{cite journal}}: (עזרה)
Catling DC, Krissansen-Totton J, Kiang NY, Crisp D, Robinson TD, DasSarma S, et al. (ביוני 2018). "Exoplanet Biosignatures: A Framework for Their Assessment". Astrobiology. 18 (6): 709–738. arXiv:1705.06381. Bibcode:2018AsBio..18..709C. doi:10.1089/ast.2017.1737. PMC 6049621. PMID 29676932. {{cite journal}}: (עזרה)
Wang Y, Tian F, Li T, Hu Y (2016-03-01). "On the detection of carbon monoxide as an anti-biosignature in exoplanetary atmospheres". Icarus. 266: 15–23. Bibcode:2016Icar..266...15W. doi:10.1016/j.icarus.2015.11.010. ISSN 0019-1035.
Sholes SF, Krissansen-Totton J, Catling DC (במאי 2019). "2 as Potential Antibiosignatures". Astrobiology. 19 (5): 655–668. arXiv:1811.08501. Bibcode:2019AsBio..19..655S. doi:10.1089/ast.2018.1835. PMID 30950631. {{cite journal}}: (עזרה)
Klein HP, Horowitz NH, Levin GV, Oyama VI, Lederberg J, Rich A, et al. (באוקטובר 1976). "The viking biological investigation: preliminary results". Science. 194 (4260): 99–105. Bibcode:1976Sci...194...99K. doi:10.1126/science.194.4260.99. PMID 17793090. {{cite journal}}: (עזרה)
Dragonfly: Exploring Titan's Surface with a New Frontiers Relocatable Lander. American Astronomical Society, DPS meeting #49, id.219.02. October 2017.
Fortes AD (2000-08-01). "Exobiological Implications of a Possible Ammonia–Water Ocean inside Titan". Icarus. 146 (2): 444–452. Bibcode:2000Icar..146..444F. doi:10.1006/icar.2000.6400. ISSN 0019-1035.
Grasset O, Sotin C, Deschamps F (2000-06-01). "On the internal structure and dynamics of Titan". Planetary and Space Science. 48 (7): 617–636. Bibcode:2000P&SS...48..617G. doi:10.1016/S0032-0633(00)00039-8. ISSN 0032-0633.
Gudipati MS, Jacovi R, Couturier-Tamburelli I, Lignell A, Allen M (2013-04-03). "Photochemical activity of Titan's low-altitude condensed haze". Nature Communications. 4: 1648. Bibcode:2013NatCo...4.1648G. doi:10.1038/ncomms2649. PMID 23552063.
Smith BA, Soderblom LA, Johnson TV, Ingersoll AP, Collins SA, Shoemaker EM, et al. (ביוני 1979). "The jupiter system through the eyes of voyager 1". Science. 204 (4396): 951–72. Bibcode:1979Sci...204..951S. doi:10.1126/science.204.4396.951. PMID 17800430. {{cite journal}}: (עזרה)
Kivelson MG, Khurana KK, Russell CT, Volwerk M, Walker RJ, Zimmer C (באוגוסט 2000). "Galileo magnetometer measurements: a stronger case for a subsurface ocean at Europa". Science. 289 (5483): 1340–3. Bibcode:2000Sci...289.1340K. doi:10.1126/science.289.5483.1340. PMID 10958778. {{cite journal}}: (עזרה)
Phillips CB, Pappalardo RT (2014-05-20). "Europa Clipper Mission Concept: Exploring Jupiter's Ocean Moon". Eos, Transactions American Geophysical Union. 95 (20): 165–167. Bibcode:2014EOSTr..95..165P. doi:10.1002/2014EO200002.
Porco CC, Helfenstein P, Thomas PC, Ingersoll AP, Wisdom J, West R, et al. (במרץ 2006). "Cassini observes the active south pole of Enceladus" (PDF). Science. 311 (5766): 1393–401. Bibcode:2006Sci...311.1393P. doi:10.1126/science.1123013. PMID 16527964. {{cite journal}}: (עזרה)
Postberg F, Schmidt J, Hillier J, Kempf S, Srama R (ביוני 2011). "A salt-water reservoir as the source of a compositionally stratified plume on Enceladus". Nature. 474 (7353): 620–2. Bibcode:2011Natur.474..620P. doi:10.1038/nature10175. PMID 21697830. {{cite journal}}: (עזרה)
Iess, L.; Stevenson, D. J.; Parisi, M.; Hemingway, D.; Jacobson, R.A.; Lunine, Jonathan I.; Nimmo, F.; Armstrong, J. W.; Asmar, S. W.; Ducci, M.; Tortora, P. (4 באפריל 2014). "The Gravity Field and Interior Structure of Enceladus" (PDF). Science. 344: 78–80. Bibcode:2014Sci...344...78I. doi:10.1126/science.1250551. PMID 24700854. {{cite journal}}: (עזרה)
Konstantinidis, Konstantinos; Flores Martinez, Claudio L.; Dachwald, Bernd; Ohndorf, Andreas; Dykta, Paul; Bowitz, Pascal; Rudolph, Martin; Digel, Ilya; Kowalski, Julia; Voigt, Konstantin; Förstner, Roger (בינואר 2015). "A lander mission to probe subglacial water on Saturn׳s moon Enceladus for life". Acta Astronautica. 106: 63–89. Bibcode:2015AcAau.106...63K. doi:10.1016/j.actaastro.2014.09.012. {{cite journal}}: (עזרה)
Tsou P, Brownlee DE, McKay CP, Anbar AD, Yano H, Altwegg K, et al. (באוגוסט 2012). "LIFE: Life Investigation For Enceladus A Sample Return Mission Concept in Search for Evidence of Life". Astrobiology. 12 (8): 730–42. Bibcode:2012AsBio..12..730T. doi:10.1089/ast.2011.0813. PMID 22970863. {{cite journal}}: (עזרה)
MacKenzie SM, Caswell TE, Phillips-Lander CM, Stavros EN, Hofgartner JD, Sun VZ, Powell KE, Steuer CJ, O'Rourke JG, Dhaliwal JK, Leung CW (2016-09-15). "THEO concept mission: Testing the Habitability of Enceladus's Ocean". Advances in Space Research. 58 (6): 1117–1137. arXiv:1605.00579. Bibcode:2016AdSpR..58.1117M. doi:10.1016/j.asr.2016.05.037. ISSN 0273-1177.
Sherwood B (2016-09-01). "Strategic map for exploring the ocean-world Enceladus". Acta Astronautica. Space Flight Safety. 126: 52–58. Bibcode:2016AcAau.126...52S. doi:10.1016/j.actaastro.2016.04.013. ISSN 0094-5765.
Anglada-Escudé, Guillem; Amado, Pedro J.; Barnes, John; et al. (2016). "A terrestrial planet candidate in a temperate orbit around Proxima Centauri". Nature. 536 (7617): 437–440. arXiv:1609.03449. Bibcode:2016Natur.536..437A. doi:10.1038/nature19106. PMID 27558064.
Meadows VS, Arney GN, Schwieterman EW, Lustig-Yaeger J, Lincowski AP, Robinson T, et al. (בפברואר 2018). "The Habitability of Proxima Centauri b: Environmental States and Observational Discriminants". Astrobiology. 18 (2): 133–189. arXiv:1608.08620. Bibcode:2018AsBio..18..133M. doi:10.1089/ast.2016.1589. PMC 5820795. PMID 29431479. {{cite journal}}: (עזרה)
Lincowski AP, Meadows VS, Lustig-Yaeger J (2019-05-17). "The Detectability and Characterization of the TRAPPIST-1 Exoplanet Atmospheres with JWST". The Astronomical Journal. 158 (1): 27. arXiv:1905.07070v1. Bibcode:2019AJ....158...27L. doi:10.3847/1538-3881/ab21e0.

jhuapl.edu

dragonfly.jhuapl.edu

"Dragonfly". dragonfly.jhuapl.edu. נבדק ב-2019-06-07.

liebertpub.com

Špaček, Jan; Benner, Steven A. (2022-10-01). "Agnostic Life Finder (ALF) for Large-Scale Screening of Martian Life During In Situ Refueling". Astrobiology (באנגלית). 22 (10): 1255–1263. doi:10.1089/ast.2021.0070. ISSN 1531-1074.

mit.edu

dspace.mit.edu

Seager S, Bains W, Petkowski JJ (ביוני 2016). "Toward a List of Molecules as Potential Biosignature Gases for the Search for Life on Exoplanets and Applications to Terrestrial Biochemistry" (PDF). Astrobiology. 16 (6): 465–85. Bibcode:2016AsBio..16..465S. doi:10.1089/ast.2015.1404. PMID 27096351. {{cite journal}}: (עזרה)

nap.edu

Board, Space Studies (2010-08-13). New Worlds, New Horizons in Astronomy and Astrophysics (באנגלית). National Academies Press. ISBN 978-0-309-15799-5.
National Academies Of Sciences Engineering; Division on Engineering Physical Sciences; Space Studies Board; Committee on Astrobiology Science Strategy for the Search for Life in the Universe (2019). Read "An Astrobiology Strategy for the Search for Life in the Universe" at NAP.edu. doi:10.17226/25252. ISBN 978-0-309-48416-9. PMID 30986006.

nasa.gov

nai.nasa.gov

NASA Astrobiology Strategy 2015 (אורכב 22.12.2016 בארכיון Wayback Machine).(PDF), NASA.

astrobiology.nasa.gov

Tenenbaum, David (30 ביולי 2008). "Reading Archaean Biosignatures". NASA. אורכב מ-המקור ב-29 בנובמבר 2014. נבדק ב-2014-11-23. {{cite web}}: (עזרה)

marsprogram.jpl.nasa.gov

"Mars Science Laboratory: Mission". NASA/JPL. אורכב מ-המקור ב-2006-03-05. נבדק ב-2010-03-12.

mepag.jpl.nasa.gov

Schulte, Mitch (20 בדצמבר 2012). "Call for Letters of Application for Membership on the Science Definition Team for the 2020 Mars Science Rover" (PDF). NASA. NNH13ZDA003L. {{cite web}}: (עזרה)

jpl.nasa.gov

"Europa Clipper". www.jpl.nasa.gov. נבדק ב-2019-06-07.

nature.com

Witze, Alexandra (2014). "Icy Enceladus hides a watery ocean". Nature News. doi:10.1038/nature.2014.14985.
Anglada-Escudé, Guillem; Amado, Pedro J.; Barnes, John; et al. (2016). "A terrestrial planet candidate in a temperate orbit around Proxima Centauri". Nature. 536 (7617): 437–440. arXiv:1609.03449. Bibcode:2016Natur.536..437A. doi:10.1038/nature19106. PMID 27558064.

nih.gov

pubmed.ncbi.nlm.nih.gov

Domagal-Goldman SD, Meadows VS, Claire MW, Kasting JF (ביוני 2011). "Using biogenic sulfur gases as remotely detectable biosignatures on anoxic planets". Astrobiology. 11 (5): 419–41. Bibcode:2011AsBio..11..419D. doi:10.1089/ast.2010.0509. PMC 3133782. PMID 21663401. {{cite journal}}: (עזרה)
Seager S, Schrenk M, Bains W (בינואר 2012). "An astrophysical view of Earth-based metabolic biosignature gases". Astrobiology. 12 (1): 61–82. Bibcode:2012AsBio..12...61S. doi:10.1089/ast.2010.0489. PMID 22269061. {{cite journal}}: (עזרה)
Meadows VS (באוקטובר 2017). "2 as a Biosignature in Exoplanetary Atmospheres". Astrobiology. 17 (10): 1022–1052. doi:10.1089/ast.2016.1578. PMC 5655594. PMID 28443722. {{cite journal}}: (עזרה)
Ver Eecke HC, Butterfield DA, Huber JA, Lilley MD, Olson EJ, Roe KK, et al. (באוגוסט 2012). "Hydrogen-limited growth of hyperthermophilic methanogens at deep-sea hydrothermal vents". Proceedings of the National Academy of Sciences of the United States of America. 109 (34): 13674–9. Bibcode:2012PNAS..10913674V. doi:10.1073/pnas.1206632109. PMC 3427048. PMID 22869718. {{cite journal}}: (עזרה)
Szostak J (במאי 2018). "How Did Life Begin?". Nature. 557 (7704): S13–S15. Bibcode:2018Natur.557S..13S. doi:10.1038/d41586-018-05098-w. PMID 29743709. {{cite journal}}: (עזרה)
Ward, Colin R.; Walter, Malcolm R.; Campbell, Kathleen A.; Kranendonk, Martin J. Van; Djokic, Tara (2017-05-09). "Earliest signs of life on land preserved in ca. 3.5 Ga hot spring deposits". Nature Communications (באנגלית). 8: 15263. Bibcode:2017NatCo...815263D. doi:10.1038/ncomms15263. ISSN 2041-1723. PMC 5436104. PMID 28486437.
Luger R, Barnes R (בפברואר 2015). "Extreme water loss and abiotic O2 buildup on planets throughout the habitable zones of M dwarfs". Astrobiology. 15 (2): 119–43. arXiv:1411.7412. Bibcode:2015AsBio..15..119L. doi:10.1089/ast.2014.1231. PMC 4323125. PMID 25629240. {{cite journal}}: (עזרה)
Reinhard, Christopher T.; Olson, Stephanie L.; Schwieterman, Edward W.; Lyons, Timothy W. (באפריל 2017). "False Negatives for Remote Life Detection on Ocean-Bearing Planets: Lessons from the Early Earth". Astrobiology. 17 (4): 287–297. arXiv:1702.01137. Bibcode:2017AsBio..17..287R. doi:10.1089/ast.2016.1598. PMC 5399744. PMID 28418704. {{cite journal}}: (עזרה)
McKay DS, Gibson EK, Thomas-Keprta KL, Vali H, Romanek CS, Clemett SJ, et al. (באוגוסט 1996). "Search for past life on Mars: possible relic biogenic activity in martian meteorite ALH84001". Science. 273 (5277): 924–30. Bibcode:1996Sci...273..924M. doi:10.1126/science.273.5277.924. PMID 8688069. {{cite journal}}: (עזרה)
Friedmann EI, Wierzchos J, Ascaso C, Winklhofer M (בפברואר 2001). "Chains of magnetite crystals in the meteorite ALH84001: evidence of biological origin". Proceedings of the National Academy of Sciences of the United States of America. 98 (5): 2176–81. doi:10.1073/pnas.051514698. PMC 30112. PMID 11226212. {{cite journal}}: (עזרה)
Thomas-Keprta KL, Clemett SJ, Bazylinski DA, Kirschvink JL, McKay DS, Wentworth SJ, et al. (בפברואר 2001). "Truncated hexa-octahedral magnetite crystals in ALH84001: presumptive biosignatures". Proceedings of the National Academy of Sciences of the United States of America. 98 (5): 2164–9. doi:10.1073/pnas.051500898. PMC 30110. PMID 11226210. {{cite journal}}: (עזרה)
Chosson, P; Lanau, C; Connan, J; Dessort, D (1991). "Biodegradation of refractory hydrocarbon biomarkers from petroleum under laboratory conditions". Nature. 351 (6328): 640–642. Bibcode:1991Natur.351..640C. doi:10.1038/351640a0. PMID 2052089.
Head, Ian M.; Jones, Martin; Larter, Steve R. (2003). "Biological activity in the deep subsurface and the origin of heavy oil" (PDF). Nature. 426 (6964): 344–352. Bibcode:2003Natur.426..344H. doi:10.1038/nature02134. PMID 14628064.
Hegde S, Paulino-Lima IG, Kent R, Kaltenegger L, Rothschild L (במרץ 2015). "Surface biosignatures of exo-earths: remote detection of extraterrestrial life". Proceedings of the National Academy of Sciences of the United States of America. 112 (13): 3886–91. Bibcode:2015PNAS..112.3886H. doi:10.1073/pnas.1421237112. PMC 4386386. PMID 25775594. {{cite journal}}: (עזרה)
Brogi M, Snellen IA, de Kok RJ, Albrecht S, Birkby J, de Mooij EJ (ביוני 2012). "The signature of orbital motion from the dayside of the planet τ Boötis b". Nature. 486 (7404): 502–4. arXiv:1206.6109. Bibcode:2012Natur.486..502B. doi:10.1038/nature11161. PMID 22739313. {{cite journal}}: (עזרה)
Seager S, Bains W, Petkowski JJ (ביוני 2016). "Toward a List of Molecules as Potential Biosignature Gases for the Search for Life on Exoplanets and Applications to Terrestrial Biochemistry" (PDF). Astrobiology. 16 (6): 465–85. Bibcode:2016AsBio..16..465S. doi:10.1089/ast.2015.1404. PMID 27096351. {{cite journal}}: (עזרה)
Krissansen-Totton J, Olson S, Catlig DC (24 בינואר 2018). "Disequilibrium biosignatures over Earth history and implications for detecting exoplanet life". Science Advances. 4: eaao5747. arXiv:1801.08211. Bibcode:2018SciA....4.5747K. doi:10.1126/sciadv.aao5747. PMC 5787383. PMID 29387792. {{cite journal}}: (עזרה)
Krissansen-Totton J, Bergsman DS, Catling DC (בינואר 2016). "On Detecting Biospheres from Chemical Thermodynamic Disequilibrium in Planetary Atmospheres". Astrobiology. 16 (1): 39–67. arXiv:1503.08249. Bibcode:2016AsBio..16...39K. doi:10.1089/ast.2015.1327. PMID 26789355. {{cite journal}}: (עזרה)
Krissansen-Totton J, Arney GN, Catling DC (באפריל 2018). "Constraining the climate and ocean pH of the early Earth with a geological carbon cycle model". Proceedings of the National Academy of Sciences of the United States of America. 115 (16): 4105–4110. arXiv:1804.00763. Bibcode:2018PNAS..115.4105K. doi:10.1073/pnas.1721296115. PMC 5910859. PMID 29610313. {{cite journal}}: (עזרה)
Benner SA (בדצמבר 2010). "Defining life". Astrobiology. 10 (10): 1021–30. Bibcode:2010AsBio..10.1021B. doi:10.1089/ast.2010.0524. PMC 3005285. PMID 21162682. {{cite journal}}: (עזרה)
National Academies Of Sciences Engineering; Division on Engineering Physical Sciences; Space Studies Board; Committee on Astrobiology Science Strategy for the Search for Life in the Universe (2019). Read "An Astrobiology Strategy for the Search for Life in the Universe" at NAP.edu. doi:10.17226/25252. ISBN 978-0-309-48416-9. PMID 30986006.
Catling DC, Krissansen-Totton J, Kiang NY, Crisp D, Robinson TD, DasSarma S, et al. (ביוני 2018). "Exoplanet Biosignatures: A Framework for Their Assessment". Astrobiology. 18 (6): 709–738. arXiv:1705.06381. Bibcode:2018AsBio..18..709C. doi:10.1089/ast.2017.1737. PMC 6049621. PMID 29676932. {{cite journal}}: (עזרה)
Sholes SF, Krissansen-Totton J, Catling DC (במאי 2019). "2 as Potential Antibiosignatures". Astrobiology. 19 (5): 655–668. arXiv:1811.08501. Bibcode:2019AsBio..19..655S. doi:10.1089/ast.2018.1835. PMID 30950631. {{cite journal}}: (עזרה)
Klein HP, Horowitz NH, Levin GV, Oyama VI, Lederberg J, Rich A, et al. (באוקטובר 1976). "The viking biological investigation: preliminary results". Science. 194 (4260): 99–105. Bibcode:1976Sci...194...99K. doi:10.1126/science.194.4260.99. PMID 17793090. {{cite journal}}: (עזרה)
Gudipati MS, Jacovi R, Couturier-Tamburelli I, Lignell A, Allen M (2013-04-03). "Photochemical activity of Titan's low-altitude condensed haze". Nature Communications. 4: 1648. Bibcode:2013NatCo...4.1648G. doi:10.1038/ncomms2649. PMID 23552063.
Smith BA, Soderblom LA, Johnson TV, Ingersoll AP, Collins SA, Shoemaker EM, et al. (ביוני 1979). "The jupiter system through the eyes of voyager 1". Science. 204 (4396): 951–72. Bibcode:1979Sci...204..951S. doi:10.1126/science.204.4396.951. PMID 17800430. {{cite journal}}: (עזרה)
Kivelson MG, Khurana KK, Russell CT, Volwerk M, Walker RJ, Zimmer C (באוגוסט 2000). "Galileo magnetometer measurements: a stronger case for a subsurface ocean at Europa". Science. 289 (5483): 1340–3. Bibcode:2000Sci...289.1340K. doi:10.1126/science.289.5483.1340. PMID 10958778. {{cite journal}}: (עזרה)
Porco CC, Helfenstein P, Thomas PC, Ingersoll AP, Wisdom J, West R, et al. (במרץ 2006). "Cassini observes the active south pole of Enceladus" (PDF). Science. 311 (5766): 1393–401. Bibcode:2006Sci...311.1393P. doi:10.1126/science.1123013. PMID 16527964. {{cite journal}}: (עזרה)
Postberg F, Schmidt J, Hillier J, Kempf S, Srama R (ביוני 2011). "A salt-water reservoir as the source of a compositionally stratified plume on Enceladus". Nature. 474 (7353): 620–2. Bibcode:2011Natur.474..620P. doi:10.1038/nature10175. PMID 21697830. {{cite journal}}: (עזרה)
Iess, L.; Stevenson, D. J.; Parisi, M.; Hemingway, D.; Jacobson, R.A.; Lunine, Jonathan I.; Nimmo, F.; Armstrong, J. W.; Asmar, S. W.; Ducci, M.; Tortora, P. (4 באפריל 2014). "The Gravity Field and Interior Structure of Enceladus" (PDF). Science. 344: 78–80. Bibcode:2014Sci...344...78I. doi:10.1126/science.1250551. PMID 24700854. {{cite journal}}: (עזרה)
Tsou P, Brownlee DE, McKay CP, Anbar AD, Yano H, Altwegg K, et al. (באוגוסט 2012). "LIFE: Life Investigation For Enceladus A Sample Return Mission Concept in Search for Evidence of Life". Astrobiology. 12 (8): 730–42. Bibcode:2012AsBio..12..730T. doi:10.1089/ast.2011.0813. PMID 22970863. {{cite journal}}: (עזרה)
Anglada-Escudé, Guillem; Amado, Pedro J.; Barnes, John; et al. (2016). "A terrestrial planet candidate in a temperate orbit around Proxima Centauri". Nature. 536 (7617): 437–440. arXiv:1609.03449. Bibcode:2016Natur.536..437A. doi:10.1038/nature19106. PMID 27558064.
Meadows VS, Arney GN, Schwieterman EW, Lustig-Yaeger J, Lincowski AP, Robinson T, et al. (בפברואר 2018). "The Habitability of Proxima Centauri b: Environmental States and Observational Discriminants". Astrobiology. 18 (2): 133–189. arXiv:1608.08620. Bibcode:2018AsBio..18..133M. doi:10.1089/ast.2016.1589. PMC 5820795. PMID 29431479. {{cite journal}}: (עזרה)

ncbi.nlm.nih.gov

Summons RE, Amend JP, Bish D, Buick R, Cody GD, Des Marais DJ, et al. (March 2011). "Preservation of martian organic and environmental records: final report of the Mars biosignature working group" (PDF). Astrobiology. 11 (2): 157–81. Bibcode:2011AsBio..11..157S. doi:10.1089/ast.2010.0506. hdl:1721.1/66519. PMID 21417945. S2CID 9963677. Archived from the original (PDF) on 2019-11-28. Retrieved 2013-06-22.
Domagal-Goldman SD, Meadows VS, Claire MW, Kasting JF (ביוני 2011). "Using biogenic sulfur gases as remotely detectable biosignatures on anoxic planets". Astrobiology. 11 (5): 419–41. Bibcode:2011AsBio..11..419D. doi:10.1089/ast.2010.0509. PMC 3133782. PMID 21663401. {{cite journal}}: (עזרה)
Meadows VS (באוקטובר 2017). "2 as a Biosignature in Exoplanetary Atmospheres". Astrobiology. 17 (10): 1022–1052. doi:10.1089/ast.2016.1578. PMC 5655594. PMID 28443722. {{cite journal}}: (עזרה)
Meadows VS, Reinhard CT, Arney GN, Parenteau MN, Schwieterman EW, Domagal-Goldman SD, et al. (June 2018). "Exoplanet Biosignatures: Understanding Oxygen as a Biosignature in the Context of Its Environment". Astrobiology. 18 (6): 630–662. arXiv:1705.07560. Bibcode:2018AsBio..18..630M. doi:10.1089/ast.2017.1727. PMC 6014580. PMID 29746149.
Ver Eecke HC, Butterfield DA, Huber JA, Lilley MD, Olson EJ, Roe KK, et al. (באוגוסט 2012). "Hydrogen-limited growth of hyperthermophilic methanogens at deep-sea hydrothermal vents". Proceedings of the National Academy of Sciences of the United States of America. 109 (34): 13674–9. Bibcode:2012PNAS..10913674V. doi:10.1073/pnas.1206632109. PMC 3427048. PMID 22869718. {{cite journal}}: (עזרה)
Ward, Colin R.; Walter, Malcolm R.; Campbell, Kathleen A.; Kranendonk, Martin J. Van; Djokic, Tara (2017-05-09). "Earliest signs of life on land preserved in ca. 3.5 Ga hot spring deposits". Nature Communications (באנגלית). 8: 15263. Bibcode:2017NatCo...815263D. doi:10.1038/ncomms15263. ISSN 2041-1723. PMC 5436104. PMID 28486437.
Luger R, Barnes R (בפברואר 2015). "Extreme water loss and abiotic O2 buildup on planets throughout the habitable zones of M dwarfs". Astrobiology. 15 (2): 119–43. arXiv:1411.7412. Bibcode:2015AsBio..15..119L. doi:10.1089/ast.2014.1231. PMC 4323125. PMID 25629240. {{cite journal}}: (עזרה)
Reinhard, Christopher T.; Olson, Stephanie L.; Schwieterman, Edward W.; Lyons, Timothy W. (באפריל 2017). "False Negatives for Remote Life Detection on Ocean-Bearing Planets: Lessons from the Early Earth". Astrobiology. 17 (4): 287–297. arXiv:1702.01137. Bibcode:2017AsBio..17..287R. doi:10.1089/ast.2016.1598. PMC 5399744. PMID 28418704. {{cite journal}}: (עזרה)
Friedmann EI, Wierzchos J, Ascaso C, Winklhofer M (בפברואר 2001). "Chains of magnetite crystals in the meteorite ALH84001: evidence of biological origin". Proceedings of the National Academy of Sciences of the United States of America. 98 (5): 2176–81. doi:10.1073/pnas.051514698. PMC 30112. PMID 11226212. {{cite journal}}: (עזרה)
Thomas-Keprta KL, Clemett SJ, Bazylinski DA, Kirschvink JL, McKay DS, Wentworth SJ, et al. (בפברואר 2001). "Truncated hexa-octahedral magnetite crystals in ALH84001: presumptive biosignatures". Proceedings of the National Academy of Sciences of the United States of America. 98 (5): 2164–9. doi:10.1073/pnas.051500898. PMC 30110. PMID 11226210. {{cite journal}}: (עזרה)
Hegde S, Paulino-Lima IG, Kent R, Kaltenegger L, Rothschild L (במרץ 2015). "Surface biosignatures of exo-earths: remote detection of extraterrestrial life". Proceedings of the National Academy of Sciences of the United States of America. 112 (13): 3886–91. Bibcode:2015PNAS..112.3886H. doi:10.1073/pnas.1421237112. PMC 4386386. PMID 25775594. {{cite journal}}: (עזרה)
Krissansen-Totton J, Olson S, Catlig DC (24 בינואר 2018). "Disequilibrium biosignatures over Earth history and implications for detecting exoplanet life". Science Advances. 4: eaao5747. arXiv:1801.08211. Bibcode:2018SciA....4.5747K. doi:10.1126/sciadv.aao5747. PMC 5787383. PMID 29387792. {{cite journal}}: (עזרה)
Lovelock JE (באוגוסט 1965). "A physical basis for life detection experiments". Nature. 207 (997): 568–70. Bibcode:1965Natur.207..568L. doi:10.1038/207568a0. PMID 5883628.
Krissansen-Totton J, Arney GN, Catling DC (באפריל 2018). "Constraining the climate and ocean pH of the early Earth with a geological carbon cycle model". Proceedings of the National Academy of Sciences of the United States of America. 115 (16): 4105–4110. arXiv:1804.00763. Bibcode:2018PNAS..115.4105K. doi:10.1073/pnas.1721296115. PMC 5910859. PMID 29610313. {{cite journal}}: (עזרה)
Benner SA (בדצמבר 2010). "Defining life". Astrobiology. 10 (10): 1021–30. Bibcode:2010AsBio..10.1021B. doi:10.1089/ast.2010.0524. PMC 3005285. PMID 21162682. {{cite journal}}: (עזרה)
Benner, Steven A. (2017). "Detecting Darwinism from Molecules in the Enceladus Plumes, Jupiter's Moons, and Other Planetary Water Lagoons". Astrobiology. 17 (9): 840–851. doi:10.1089/ast.2016.1611. ISSN 1531-1074. PMC 5610385.
Sutton, Mark A.; Burton, Aaron S.; Zaikova, Elena; Sutton, Ryan E.; Brinckerhoff, William B.; Bevilacqua, Julie G.; Weng, Margaret M.; Mumma, Michael J.; Johnson, Sarah Stewart (2019-03-29). "Radiation Tolerance of Nanopore Sequencing Technology for Life Detection on Mars and Europa". Scientific Reports. 9 (1). doi:10.1038/s41598-019-41488-4. ISSN 2045-2322. PMC 6441015.
Formisano V, Atreya S, Encrenaz T, Ignatiev N, Giuranna M (December 2004). "Detection of methane in the atmosphere of Mars". Science. 306 (5702): 1758–61. Bibcode:2004Sci...306.1758F. doi:10.1126/science.1101732. PMID 15514118. S2CID 13533388.
Mumma MJ, Villanueva GL, Novak RE, Hewagama T, Bonev BP, Disanti MA, et al. (February 2009). "Strong release of methane on Mars in northern summer 2003". Science. 323 (5917): 1041–5. Bibcode:2009Sci...323.1041M. doi:10.1126/science.1165243. PMID 19150811. S2CID 25083438.
Webster CR, Mahaffy PR, Atreya SK, Flesch GJ, Mischna MA, Meslin PY, et al. (January 2015). "Mars atmosphere. Mars methane detection and variability at Gale crater" (PDF). Science. 347 (6220): 415–7. Bibcode:2015Sci...347..415W. doi:10.1126/science.1261713. PMID 25515120. S2CID 20304810
Webster CR, Mahaffy PR, Atreya SK, Moores JE, Flesch GJ, Malespin C, et al. (June 2018). "Background levels of methane in Mars' atmosphere show strong seasonal variations". Science. 360 (6393): 1093–1096. Bibcode:2018Sci...360.1093W. doi:10.1126/science.aaq0131. PMID 29880682
Mumma MJ, Villanueva GL, Novak RE, Hewagama T, Bonev BP, Disanti MA, et al. (February 2009). "Strong release of methane on Mars in northern summer 2003". Science. 323 (5917): 1041–5. Bibcode:2009Sci...323.1041M. doi:10.1126/science.1165243. PMID 19150811. S2CID 25083438
Korablev O, Vandaele AC, Montmessin F, Fedorova AA, Trokhimovskiy A, Forget F, et al. (April 2019). "No detection of methane on Mars from early ExoMars Trace Gas Orbiter observations" (PDF). Nature. 568 (7753): 517–520. Bibcode:2019Natur.568..517K. doi:10.1038/s41586-019-1096-4. PMID 30971829. S2CID 106411228
Catling DC, Krissansen-Totton J, Kiang NY, Crisp D, Robinson TD, DasSarma S, et al. (ביוני 2018). "Exoplanet Biosignatures: A Framework for Their Assessment". Astrobiology. 18 (6): 709–738. arXiv:1705.06381. Bibcode:2018AsBio..18..709C. doi:10.1089/ast.2017.1737. PMC 6049621. PMID 29676932. {{cite journal}}: (עזרה)
Meadows VS, Arney GN, Schwieterman EW, Lustig-Yaeger J, Lincowski AP, Robinson T, et al. (בפברואר 2018). "The Habitability of Proxima Centauri b: Environmental States and Observational Discriminants". Astrobiology. 18 (2): 133–189. arXiv:1608.08620. Bibcode:2018AsBio..18..133M. doi:10.1089/ast.2016.1589. PMC 5820795. PMID 29431479. {{cite journal}}: (עזרה)

nytimes.com

Gertner, Jon (15 בספטמבר 2022). "The Search for Intelligent Life Is About to Get a Lot More Interesting - There are an estimated 100 billion galaxies in the universe, home to an unimaginable abundance of planets. And now, there are new ways to spot signs of life on them". The New York Times. נבדק ב-15 בספטמבר 2022. {{cite news}}: (עזרה)

permedia.ca

uig.permedia.ca

Head, Ian M.; Jones, Martin; Larter, Steve R. (2003). "Biological activity in the deep subsurface and the origin of heavy oil" (PDF). Nature. 426 (6964): 344–352. Bibcode:2003Natur.426..344H. doi:10.1038/nature02134. PMID 14628064.

phys.org

University of New South Wales (9 במאי 2017). "Oldest evidence of life on land found in 3.48-billion-year-old Australian rocks". Phys.org (באנגלית אמריקאית). נבדק ב-2019-06-12. {{cite web}}: (עזרה)
Cousins, Claire (5 בינואר 2018). "Rover could discover life on Mars – here's what it would take to prove it". PhysOrg. {{cite news}}: (עזרה)
JPL/NASA (3 באפריל 2013). "NASA team investigates complex chemistry at Titan". Phys.org. נבדק ב-2019-06-07. {{cite web}}: (עזרה)

psu.edu

php.scripts.psu.edu

"SIGNATURES OF LIFE FROM EARTH AND BEYOND". Penn State Astrobiology Research Center (PSARC). Penn State. 2009. אורכב מ-המקור ב-2018-10-23. נבדק ב-2011-01-14.

ruvr.ru

english.ruvr.ru

Pavlishchev, Boris (15 יולי 2012). "ExoMars program gathers strength". The Voice of Russia. אורכב מ-המקור ב-2012-08-06. נבדק ב-2012-07-15. {{cite news}}: (עזרה)

science-dictionary.com

"Biosignature - definition". Science Dictionary. 2011. אורכב מ-המקור ב-2010-03-16. נבדק ב-2011-01-12.

science.org

Voosen, Paul (2017-01-04). "Updated: NASA taps missions to tiny metal world and Jupiter Trojans". Science | AAAS. נבדק ב-2019-06-07.

space.com

Choi CQ (באוגוסט 2016). "Mars Life? 20 Years Later, Debate Over Meteorite Continues". Space.com. נבדק ב-2019-06-07. {{cite web}}: (עזרה)
Wall, Mike (13 בדצמבר 2011). "Mars Life Hunt Could Look for Magnetic Clues". Space.com. נבדק ב-2011-12-15. {{cite news}}: (עזרה)
Cofield, Calla (30 במרץ 2015). "Catalog of Earth Microbes Could Help Find Alien Life". Space.com. נבדק ב-2015-05-11. {{cite news}}: (עזרה)
Wall, Mike (24 בינואר 2018). "Alien Life Hunt: Oxygen Isn't the Only Possible Sign of Life". Space.com. נבדק ב-24 בינואר 2018. {{cite web}}: (עזרה)
Robert Lea, Life on Venus? Intriguing molecule phosphine spotted in planet's clouds again, https://www.space.com/, ‏7 ביולי 2023

spaceflightnow.com

Clark, Stephen (2015-04-06). "Diverse destinations considered for new interplanetary probe". Spaceflight Now. נבדק ב-2019-06-07.

spacetelescope.org

"Hubble discovers water vapour venting from Jupiter's moon Europa". www.spacetelescope.org. נבדק ב-2019-06-07.
"Photo composite of suspected water plumes on Europa". www.spacetelescope.org. נבדק ב-2019-06-07.

swri.edu

missionjuno.swri.edu

"How Fast Can Juno Go?". Mission Juno. נבדק ב-2019-06-08.

technologyreview.com

"Artificial Life Shares Biosignature With Terrestrial Cousins". The Physics arXiv Blog. MIT. 10 בינואר 2011. אורכב מ-המקור ב-2018-10-23. נבדק ב-2011-01-14. {{cite web}}: (עזרה)

theconversation.com

N. Madhusudhan (Cambridge University), Signs of life? Why astronomers are excited about carbon dioxide and methane in the atmosphere of an alien world, https://theconversation.com/
Desai, Ravi (27 ביולי 2017). "Saturn's moon Titan may harbour simple life forms – and reveal how organisms first formed on Earth". The Conversation. נבדק ב-2019-06-07. {{cite web}}: (עזרה)

ucla.edu

astrobiology.ucla.edu

Agresti; House; Jögi; Kudryavstev; McKeegan; Runnegar; Schopf; Wdowiak (3 בדצמבר 2008). "Detection and geochemical characterization of Earth's earliest life". NASA Astrobiology Institute. NASA. אורכב מ-המקור ב-23 בינואר 2013. נבדק ב-2013-01-15. {{cite news}}: (עזרה)

umd.edu

physics.umd.edu

Where are they? (PDF) Mario Livio and Joseph Silk. Physics Today, March 2017.

usatoday.com

Crenson M (2006-08-06). "After 10 years, few believe life on Mars". Associated Press (on usatoday.com). נבדק ב-2009-12-06.

washingtonpost.com

Frank, Adam (31 בדצמבר 2020). "A new frontier is opening in the search for extraterrestrial life - The reason we haven't found life elsewhere in the universe is simple: We haven't looked until now". The Washington Post. נבדק ב-1 בינואר 2021. {{cite news}}: (עזרה)

waters.com

Stevens, Douglas; Hsu, Chang Samuel; Shi, Quan (2013). "Petroleum biomarkers analyzed by atmospheric gas chromatography-tandem mass spectroscopy" (PDF). Waters.

web.archive.org

"Biosignature - definition". Science Dictionary. 2011. אורכב מ-המקור ב-2010-03-16. נבדק ב-2011-01-12.
NASA Astrobiology Strategy 2015 (אורכב 22.12.2016 בארכיון Wayback Machine).(PDF), NASA.
"SIGNATURES OF LIFE FROM EARTH AND BEYOND". Penn State Astrobiology Research Center (PSARC). Penn State. 2009. אורכב מ-המקור ב-2018-10-23. נבדק ב-2011-01-14.
Tenenbaum, David (30 ביולי 2008). "Reading Archaean Biosignatures". NASA. אורכב מ-המקור ב-29 בנובמבר 2014. נבדק ב-2014-11-23. {{cite web}}: (עזרה)
"Fatty alcohols". אורכב מ-המקור ב-2012-06-25. נבדק ב-2006-04-01.
Agresti; House; Jögi; Kudryavstev; McKeegan; Runnegar; Schopf; Wdowiak (3 בדצמבר 2008). "Detection and geochemical characterization of Earth's earliest life". NASA Astrobiology Institute. NASA. אורכב מ-המקור ב-23 בינואר 2013. נבדק ב-2013-01-15. {{cite news}}: (עזרה)
Schopf JW, Kudryavtsev AB, Czaja AD, Tripathi AB (28 באפריל 2007). "Evidence of Archean life: Stromatolites and microfossils" (PDF). Precambrian Research. 158 (3–4): 141–155. Bibcode:2007PreR..158..141S. doi:10.1016/j.precamres.2007.04.009. אורכב מ-המקור (PDF) ב-2012-12-24. נבדק ב-2013-01-15. {{cite journal}}: (עזרה)
"Artificial Life Shares Biosignature With Terrestrial Cousins". The Physics arXiv Blog. MIT. 10 בינואר 2011. אורכב מ-המקור ב-2018-10-23. נבדק ב-2011-01-14. {{cite web}}: (עזרה)
Pavlishchev, Boris (15 יולי 2012). "ExoMars program gathers strength". The Voice of Russia. אורכב מ-המקור ב-2012-08-06. נבדק ב-2012-07-15. {{cite news}}: (עזרה)
"Mars Science Laboratory: Mission". NASA/JPL. אורכב מ-המקור ב-2006-03-05. נבדק ב-2010-03-12.
"Future Planetary Exploration: Proposed New Frontiers Missions". Future Planetary Exploration. 2017-08-04. אורכב מ-המקור ב-2017-09-20. נבדק ב-2019-06-07.

worldcat.org

Ward, Colin R.; Walter, Malcolm R.; Campbell, Kathleen A.; Kranendonk, Martin J. Van; Djokic, Tara (2017-05-09). "Earliest signs of life on land preserved in ca. 3.5 Ga hot spring deposits". Nature Communications (באנגלית). 8: 15263. Bibcode:2017NatCo...815263D. doi:10.1038/ncomms15263. ISSN 2041-1723. PMC 5436104. PMID 28486437.
Ratnayake, Amila Sandaruwan; Sampei, Yoshikazu (2019-06-01). "Organic geochemical evaluation of contamination tracers in deepwater well rock cuttings from the Mannar Basin, Sri Lanka". Journal of Petroleum Exploration and Production Technology (באנגלית). 9 (2): 989–996. doi:10.1007/s13202-018-0575-8. ISSN 2190-0566.
DasSarma, Shiladitya; Schwieterman, Edward W. (2018). "Early evolution of purple retinal pigments on Earth and implications for exoplanet biosignatures". International Journal of Astrobiology (באנגלית). 20 (3): 1–10. arXiv:1810.05150. Bibcode:2018arXiv181005150D. doi:10.1017/S1473550418000423. ISSN 1473-5504.
Arney, Giada N. (במרץ 2019). "The K Dwarf Advantage for Biosignatures on Directly Imaged Exoplanets". The Astrophysical Journal. 873 (1): L7. arXiv:2001.10458. Bibcode:2019ApJ...873L...7A. doi:10.3847/2041-8213/ab0651. ISSN 2041-8205. {{cite journal}}: (עזרה)
Hitchcock DR, Lovelock JE (1967-01-01). "Life detection by atmospheric analysis". Icarus. 7 (1): 149–159. Bibcode:1967Icar....7..149H. doi:10.1016/0019-1035(67)90059-0. ISSN 0019-1035
Zahnle K, Freedman RS, Catling DC (2011-04-01). "Is there methane on Mars?". Icarus. 212 (2): 493–503. Bibcode:2011Icar..212..493Z. doi:10.1016/j.icarus.2010.11.027. ISSN 0019-1035
Špaček, Jan; Benner, Steven A. (2022-10-01). "Agnostic Life Finder (ALF) for Large-Scale Screening of Martian Life During In Situ Refueling". Astrobiology (באנגלית). 22 (10): 1255–1263. doi:10.1089/ast.2021.0070. ISSN 1531-1074.
Benner, Steven A. (2017). "Detecting Darwinism from Molecules in the Enceladus Plumes, Jupiter's Moons, and Other Planetary Water Lagoons". Astrobiology. 17 (9): 840–851. doi:10.1089/ast.2016.1611. ISSN 1531-1074. PMC 5610385.
Sutton, Mark A.; Burton, Aaron S.; Zaikova, Elena; Sutton, Ryan E.; Brinckerhoff, William B.; Bevilacqua, Julie G.; Weng, Margaret M.; Mumma, Michael J.; Johnson, Sarah Stewart (2019-03-29). "Radiation Tolerance of Nanopore Sequencing Technology for Life Detection on Mars and Europa". Scientific Reports. 9 (1). doi:10.1038/s41598-019-41488-4. ISSN 2045-2322. PMC 6441015.
Krasnopolsky VA, Maillard JP, Owen TC (2004-12-01). "Detection of methane in the martian atmosphere: evidence for life?". Icarus. 172 (2): 537–547. Bibcode:2004Icar..172..537K. doi:10.1016/j.icarus.2004.07.004. ISSN 0019-1035.
Krasnopolsky VA (2012-01-01). "Search for methane and upper limits to ethane and SO2 on Mars". Icarus. 217 (1): 144–152. Bibcode:2012Icar..217..144K. doi:10.1016/j.icarus.2011.10.019. ISSN 0019-1035.
Amoroso M, Merritt D, Parra JM, Cardesín-Moinelo A, Aoki S, Wolkenberg P, Alessandro Aronica, Formisano V, Oehler D (May 2019). "Independent confirmation of a methane spike on Mars and a source region east of Gale Crater". Nature Geoscience. 12 (5): 326–332. Bibcode:2019NatGe..12..326G. doi:10.1038/s41561-019-0331-9. ISSN 1752-0908. S2CID 134110253.
Wang Y, Tian F, Li T, Hu Y (2016-03-01). "On the detection of carbon monoxide as an anti-biosignature in exoplanetary atmospheres". Icarus. 266: 15–23. Bibcode:2016Icar..266...15W. doi:10.1016/j.icarus.2015.11.010. ISSN 0019-1035.
Fortes AD (2000-08-01). "Exobiological Implications of a Possible Ammonia–Water Ocean inside Titan". Icarus. 146 (2): 444–452. Bibcode:2000Icar..146..444F. doi:10.1006/icar.2000.6400. ISSN 0019-1035.
Grasset O, Sotin C, Deschamps F (2000-06-01). "On the internal structure and dynamics of Titan". Planetary and Space Science. 48 (7): 617–636. Bibcode:2000P&SS...48..617G. doi:10.1016/S0032-0633(00)00039-8. ISSN 0032-0633.
MacKenzie SM, Caswell TE, Phillips-Lander CM, Stavros EN, Hofgartner JD, Sun VZ, Powell KE, Steuer CJ, O'Rourke JG, Dhaliwal JK, Leung CW (2016-09-15). "THEO concept mission: Testing the Habitability of Enceladus's Ocean". Advances in Space Research. 58 (6): 1117–1137. arXiv:1605.00579. Bibcode:2016AdSpR..58.1117M. doi:10.1016/j.asr.2016.05.037. ISSN 0273-1177.
Sherwood B (2016-09-01). "Strategic map for exploring the ocean-world Enceladus". Acta Astronautica. Space Flight Safety. 126: 52–58. Bibcode:2016AcAau.126...52S. doi:10.1016/j.actaastro.2016.04.013. ISSN 0094-5765.