Viking lander biological experiments (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Viking lander biological experiments" in English language version.

refsWebsite

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27harvard.edu

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27doi.org

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16nih.gov

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12semanticscholar.org

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10web.archive.org

1^st place

5worldcat.org

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4nasa.gov

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3archive.org

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3books.google.com

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3arxiv.org

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2space.com

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2earthsky.org

6,724^th place

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2sciencedaily.com

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1science.org

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1springer.com

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1cnn.com

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1gillevin.com

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1cambridge.org

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1bigthink.com

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1nationalgeographic.com

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1latimes.com

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1airspacemag.com

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1liebertpub.com

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1scientificamerican.com

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1cosis.net

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1contactincontext.org

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1wustl.edu

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1salon.com

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1caltech.edu

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1bbc.co.uk

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1aanda.org

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1nbcnews.com

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aanda.org (Global: 5,591^st place; English: 5,552^nd place)

Webster, Christopher R.; Mahaffy, Paul R.; Pla-Garcia, Jorge; Rafkin, Scot C. R.; Moores, John E.; Atreya, Sushil K.; Flesch, Gregory J.; Malespin, Charles A.; Teinturier, Samuel M.; Kalucha, Hemani; Smith, Christina L.; Viúdez-Moreiras, Daniel; Vasavada, Ashwin R. (2021-06-01). "Day-night differences in Mars methane suggest nighttime containment at Gale crater". Astronomy & Astrophysics. 650: A166. Bibcode:2021A&A...650A.166W. doi:10.1051/0004-6361/202040030. ISSN 0004-6361.

airspacemag.com (Global: 4,171^st place; English: 2,565^th place)

Bell TE (April 2016). "Would We Know Alien Life If We Saw It?". Air & Space Magazine.

archive.org (Global: 6^th place; English: 6^th place)

Chambers P (1999). Life on Mars; The Complete Story. London: Blandford. ISBN 978-0-7137-2747-0.
Kieffer HH, Jakosky BM, Snyder CW, Matthews M (1992-10-01). Mars. University of Arizona Press. ISBN 978-0-8165-1257-7. {{cite book}}: |work= ignored (help)
Plaxco KW, Gross M (2006). Astrobiology: A Brief Introduction. JHU Press. p. 223. ISBN 978-0-8018-8366-8.

arxiv.org (Global: 69^th place; English: 59^th place)

Houtkooper, Joop M.; Schulze-Makuch, Dirk (22 May 2007). "A possible biogenic origin for hydrogen peroxide on Mars: the Viking results reinterpreted". International Journal of Astrobiology. 6 (2): 147–152. arXiv:physics/0610093. Bibcode:2007IJAsB...6..147H. doi:10.1017/S1473550407003746. ISSN 1475-3006.
Schulze-Makuch D, Houtkooper JM (2007-05-22). "A Possible Biogenic Origin for Hydrogen Peroxide on Mars". International Journal of Astrobiology. 6 (2): 147. arXiv:physics/0610093. Bibcode:2007IJAsB...6..147H. doi:10.1017/S1473550407003746. S2CID 8091895.
Levin G (2007). "Analysis of evidence of Mars life". Electroneurobiología. 15 (2): 39–47. arXiv:0705.3176. Bibcode:2007arXiv0705.3176L. ISSN 1850-1826.

bbc.co.uk (Global: 8^th place; English: 10^th place)

news.bbc.co.uk

Rincon P (2009-07-09). "Agencies outline Mars initiative". BBC News. BBC. Retrieved 2009-07-26.

bigthink.com (Global: 6,931^st place; English: 4,746^th place)

"We might have accidentally killed the only life we ever found on Mars nearly 50 years ago". Big Think. 2023-06-27. Retrieved 2024-12-14.

books.google.com (Global: 3^rd place; English: 3^rd place)

Plaxco KW, Gross M (2011). Astrobiology: A Brief Introduction (2nd ed.). JHU Press. pp. 282–283. ISBN 978-1-4214-0194-2.
Plaxco KW, Gross M (2011-08-12). Astrobiology: A Brief Introduction. JHU Press. pp. 285–286. ISBN 978-1-4214-0194-2. Retrieved 2013-07-16.
Burgess, Eric (1976-11-04). "New Scientist". Reed Business Information.

caltech.edu (Global: 887^th place; English: 714^th place)

authors.library.caltech.edu

Webster CR, Mahaffy PR, Atreya SK, Flesch GJ, Farley KA (October 2013). "Low upper limit to methane abundance on Mars" (PDF). Science. 342 (6156): 355–7. Bibcode:2013Sci...342..355W. doi:10.1126/science.1242902. PMID 24051245. S2CID 43194305.

cambridge.org (Global: 305^th place; English: 264^th place)

Houtkooper, Joop M.; Schulze-Makuch, Dirk (22 May 2007). "A possible biogenic origin for hydrogen peroxide on Mars: the Viking results reinterpreted". International Journal of Astrobiology. 6 (2): 147–152. arXiv:physics/0610093. Bibcode:2007IJAsB...6..147H. doi:10.1017/S1473550407003746. ISSN 1475-3006.

cnn.com (Global: 28^th place; English: 26^th place)

edition.cnn.com

Stenger R (2000-11-07). "Mars sample return plan carries microbial risk, group warns". CNN.

contactincontext.org (Global: low place; English: low place)

"Science works through Mars lander life controversy". Contactincontext.org. 2007-03-22. Archived from the original on 2016-03-04. Retrieved 2014-04-14.

cosis.net (Global: low place; English: low place)

Paepe R (2007). "The Red Soil on Mars as a proof for water and vegetation" (PDF). Geophysical Research Abstracts. 9 (1794). Retrieved 2008-08-14.

doi.org (Global: 2^nd place; English: 2^nd place)

Acevedo S (2001-12-01). "In Memoriam Dr. Harold P. Klein (1921 - 2001)". Origins of Life and Evolution of the Biosphere. 31 (6): 549–551. Bibcode:2001OLEB...31..549A. doi:10.1023/A:1013387122386. S2CID 39294965.
Biemann K, Bada JL (2011). "Comment on "Reanalysis of the Viking results suggests perchlorate and organics at midlatitudes on Mars" by Rafael Navarro-González et al". Journal of Geophysical Research. 116 (E12) E12001. Bibcode:2011JGRE..11612001B. doi:10.1029/2011JE003869.
Navarro-González R, McKay CP (2011). "Reply to comment by Biemann and Bada on "Reanalysis of the Viking results suggests perchlorate and organics at midlatitudes on Mars"". Journal of Geophysical Research. 116 (E12): E12002. Bibcode:2011JGRE..11612002N. doi:10.1029/2011JE003880.
Trokhimovskiy, A.; Fedorova, A.A.; Olsen, K.S.; Alday, J.; Korablev, O.; Montmessin, F.; Lefèvre, F.; Patrakeev, A.; Belyaev, D.; Shakun, A.V. (July 2021). "Isotopes of chlorine from HCl in the Martian atmosphere". Astronomy & Astrophysics. 651 (A32): A32. Bibcode:2021A&A...651A..32T. doi:10.1051/0004-6361/202140916. S2CID 236336984.
Levin, Gilbert V.; Straat, Patricia Ann (October 2016). "The Case for Extant Life on Mars and Its Possible Detection by the Viking Labeled Release Experiment". Astrobiology. 16 (10): 798–810. Bibcode:2016AsBio..16..798L. doi:10.1089/ast.2015.1464. ISSN 1557-8070. PMC 6445182. PMID 27626510.
Levin, Gilbert; Straat, Patricia (17 December 1976). "Viking Labeled Release Biology Experiment: Interim Results". Science. 194 (4271): 1322–1329. Bibcode:1976Sci...194.1322L. doi:10.1126/science.194.4271.1322. PMID 17797094. S2CID 24206165. Retrieved 27 September 2020.
Levin, Gilbert V.; Straat, Patricia Ann (1 March 1979). "Completion of the Viking labeled release experiment on Mars". Journal of Molecular Evolution. 14 (1): 167–183. Bibcode:1979JMolE..14..167L. doi:10.1007/BF01732376. PMID 522152. S2CID 20915236. Retrieved 27 September 2020.
Miller JD, Straat PA, Levin GV (February 2002). Hoover RB, Levin GV, Paepe RR, Rozanov AY (eds.). "Periodic analysis of the Viking lander Labeled Release experiment". Instruments, Methods, and Missions for Astrobiology IV. 4495: 96–108. Bibcode:2002SPIE.4495...96M. doi:10.1117/12.454748. S2CID 96639386. Archived from the original on 2020-11-09. Retrieved 2015-03-22. One speculation is that the function represents metabolism during a period of slow growth or cell division to an asymptotic level of cellular confluence, perhaps similar to terrestrial biofilms in the steady state.
Houtkooper, Joop M.; Schulze-Makuch, Dirk (22 May 2007). "A possible biogenic origin for hydrogen peroxide on Mars: the Viking results reinterpreted". International Journal of Astrobiology. 6 (2): 147–152. arXiv:physics/0610093. Bibcode:2007IJAsB...6..147H. doi:10.1017/S1473550407003746. ISSN 1475-3006.
Bianciardi G, Miller JD, Straat PA, Levin GV (March 2012). "Complexity Analysis of the Viking Labeled Release Experiments". IJASS. 13 (1): 14–26. Bibcode:2012IJASS..13...14B. doi:10.5139/IJASS.2012.13.1.14.
Horowitz NH, Hobby GL, Hubbard JS (December 1976). "The viking carbon assimilation experiments: interim report". Science. 194 (4271): 1321–2. Bibcode:1976Sci...194.1321H. doi:10.1126/science.194.4271.1321. PMID 17797093. S2CID 206569558.
Klein HP, Horowitz NH, Levin GV, Oyama VI, Lederberg J, Rich A, et al. (October 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. S2CID 24957458.
Schuerger, Andrew; Clark, Benton (March 2008). "Viking Biology Experiments: Lessons Learned and the Role of Ecology in Future Mars Life-Detection Experiments". Space Science Reviews. 135 (1–4): 233–243. Bibcode:2008SSRv..135..233S. doi:10.1007/s11214-007-9194-2. S2CID 189797714.
Klein, Harold (June 1978). "The Viking biological experiments on Mars". Icarus. 34 (3): 666. Bibcode:1978Icar...34..666K. doi:10.1016/0019-1035(78)90053-2.
Guzman, Melissa; McKay, Christopher P.; Quinn, Richard C.; Szopa, Cyril; Davila, Alfonso F.; Navarro-González, Rafael; Freissinet, Caroline (July 2018). "Identification of Chlorobenzene in the Viking Gas Chromatograph-Mass Spectrometer Data Sets: Reanalysis of Viking Mission Data Consistent With Aromatic Organic Compounds on Mars". Journal of Geophysical Research: Planets. 123 (7): 1674–1683. Bibcode:2018JGRE..123.1674G. doi:10.1029/2018JE005544. ISSN 2169-9100. S2CID 133854625. Retrieved 27 September 2020.
Beegle LW, Wilson MG, Abilleira F, Jordan JF, Wilson GR (August 2007). "A concept for NASA's Mars 2016 astrobiology field laboratory". Astrobiology. 7 (4): 545–77. Bibcode:2007AsBio...7..545B. doi:10.1089/ast.2007.0153. PMID 17723090.
Navarro-Gonzáles R, Vargas E, de la Rosa J, Raga AC, McKay CP (2010-12-15). "Reanalysis of the Viking results suggests perchlorate and organics at midlatitudes on Mars". Journal of Geophysical Research: Planets. 115 (E12010): E12010. Bibcode:2010JGRE..11512010N. doi:10.1029/2010JE003599.
Navarro-González R (2011). "Correction to "Reanalysis of the Viking results suggests perchlorate and organics at midlatitudes on Mars"". Journal of Geophysical Research. Vol. 116, no. E8. Bibcode:2011JGRE..116.8011N. doi:10.1029/2011JE003854.
Quinn RC, Martucci HF, Miller SR, Bryson CE, Grunthaner FJ, Grunthaner PJ (June 2013). "Perchlorate radiolysis on Mars and the origin of martian soil reactivity". Astrobiology. 13 (6): 515–20. Bibcode:2013AsBio..13..515Q. doi:10.1089/ast.2013.0999. PMC 3691774. PMID 23746165.
Georgiou, Christos D.; Zisimopoulos, Dimitrios; Kalaitzopoulou, Electra; Quinn, Richard C. (April 2017). "Radiation-Driven Formation of Reactive Oxygen Species in Oxychlorine-Containing Mars Surface Analogues". Astrobiology. 17 (4): 319–336. Bibcode:2017AsBio..17..319G. doi:10.1089/ast.2016.1539. PMID 28418706. Retrieved 27 September 2020.
Schulze-Makuch D, Houtkooper JM (2007-05-22). "A Possible Biogenic Origin for Hydrogen Peroxide on Mars". International Journal of Astrobiology. 6 (2): 147. arXiv:physics/0610093. Bibcode:2007IJAsB...6..147H. doi:10.1017/S1473550407003746. S2CID 8091895.
Spie (2014). "Gilbert Levin: Mars microbes -- proof from the Viking missions?". SPIE Newsroom. doi:10.1117/2.3201403.03.
Quinn R, Zent A (1999). "Peroxide-Modified Titanium Dioxide: a Chemical Analog of Putative Martian Soil Oxidants". Journal Origins of Life and Evolution of Biospheres. 29 (1): 59–72. Bibcode:1999OLEB...29...59Q. doi:10.1023/A:1006506022182. PMID 10077869. S2CID 176902.
Navarro-González R, Navarro KF, de la Rosa J, Iñiguez E, Molina P, Miranda LD, et al. (October 2006). "The limitations on organic detection in Mars-like soils by thermal volatilization-gas chromatography-MS and their implications for the Viking results". Proceedings of the National Academy of Sciences of the United States of America. 103 (44): 16089–94. Bibcode:2006PNAS..10316089N. doi:10.1073/pnas.0604210103. PMC 1621051. PMID 17060639.
Levin GV, Straat PA (October 2016). "The Case for Extant Life on Mars and Its Possible Detection by the Viking Labeled Release Experiment". Astrobiology. 16 (10): 798–810. Bibcode:2016AsBio..16..798L. doi:10.1089/ast.2015.1464. PMC 6445182. PMID 27626510.
Webster CR, Mahaffy PR, Atreya SK, Flesch GJ, Farley KA (October 2013). "Low upper limit to methane abundance on Mars" (PDF). Science. 342 (6156): 355–7. Bibcode:2013Sci...342..355W. doi:10.1126/science.1242902. PMID 24051245. S2CID 43194305.
Webster, Christopher R.; Mahaffy, Paul R.; Pla-Garcia, Jorge; Rafkin, Scot C. R.; Moores, John E.; Atreya, Sushil K.; Flesch, Gregory J.; Malespin, Charles A.; Teinturier, Samuel M.; Kalucha, Hemani; Smith, Christina L.; Viúdez-Moreiras, Daniel; Vasavada, Ashwin R. (2021-06-01). "Day-night differences in Mars methane suggest nighttime containment at Gale crater". Astronomy & Astrophysics. 650: A166. Bibcode:2021A&A...650A.166W. doi:10.1051/0004-6361/202040030. ISSN 0004-6361.

earthsky.org (Global: 6,724^th place; English: 5,463^rd place)

"Did we find life on Mars … and then wipe it out?". earthsky.org. 2023-07-06. Retrieved 2024-12-14.
"Mars methane mystery? Depends on the time of day". earthsky.org. 2021-07-03. Retrieved 2024-12-12.

esa.int (Global: 1,482^nd place; English: 1,468^th place)

"ExoMars rover". ESA. Retrieved 2014-04-14.

gillevin.com (Global: low place; English: low place)

Miller JD, Straat PA, Levin GV (February 2002). Hoover RB, Levin GV, Paepe RR, Rozanov AY (eds.). "Periodic analysis of the Viking lander Labeled Release experiment". Instruments, Methods, and Missions for Astrobiology IV. 4495: 96–108. Bibcode:2002SPIE.4495...96M. doi:10.1117/12.454748. S2CID 96639386. Archived from the original on 2020-11-09. Retrieved 2015-03-22. One speculation is that the function represents metabolism during a period of slow growth or cell division to an asymptotic level of cellular confluence, perhaps similar to terrestrial biofilms in the steady state.

harvard.edu (Global: 18^th place; English: 17^th place)

ui.adsabs.harvard.edu

Acevedo S (2001-12-01). "In Memoriam Dr. Harold P. Klein (1921 - 2001)". Origins of Life and Evolution of the Biosphere. 31 (6): 549–551. Bibcode:2001OLEB...31..549A. doi:10.1023/A:1013387122386. S2CID 39294965.
Biemann K, Bada JL (2011). "Comment on "Reanalysis of the Viking results suggests perchlorate and organics at midlatitudes on Mars" by Rafael Navarro-González et al". Journal of Geophysical Research. 116 (E12) E12001. Bibcode:2011JGRE..11612001B. doi:10.1029/2011JE003869.
Navarro-González R, McKay CP (2011). "Reply to comment by Biemann and Bada on "Reanalysis of the Viking results suggests perchlorate and organics at midlatitudes on Mars"". Journal of Geophysical Research. 116 (E12): E12002. Bibcode:2011JGRE..11612002N. doi:10.1029/2011JE003880.
Trokhimovskiy, A.; Fedorova, A.A.; Olsen, K.S.; Alday, J.; Korablev, O.; Montmessin, F.; Lefèvre, F.; Patrakeev, A.; Belyaev, D.; Shakun, A.V. (July 2021). "Isotopes of chlorine from HCl in the Martian atmosphere". Astronomy & Astrophysics. 651 (A32): A32. Bibcode:2021A&A...651A..32T. doi:10.1051/0004-6361/202140916. S2CID 236336984.
Levin, Gilbert V.; Straat, Patricia Ann (October 2016). "The Case for Extant Life on Mars and Its Possible Detection by the Viking Labeled Release Experiment". Astrobiology. 16 (10): 798–810. Bibcode:2016AsBio..16..798L. doi:10.1089/ast.2015.1464. ISSN 1557-8070. PMC 6445182. PMID 27626510.
Levin, Gilbert; Straat, Patricia (17 December 1976). "Viking Labeled Release Biology Experiment: Interim Results". Science. 194 (4271): 1322–1329. Bibcode:1976Sci...194.1322L. doi:10.1126/science.194.4271.1322. PMID 17797094. S2CID 24206165. Retrieved 27 September 2020.
Levin, Gilbert V.; Straat, Patricia Ann (1 March 1979). "Completion of the Viking labeled release experiment on Mars". Journal of Molecular Evolution. 14 (1): 167–183. Bibcode:1979JMolE..14..167L. doi:10.1007/BF01732376. PMID 522152. S2CID 20915236. Retrieved 27 September 2020.
Miller JD, Straat PA, Levin GV (February 2002). Hoover RB, Levin GV, Paepe RR, Rozanov AY (eds.). "Periodic analysis of the Viking lander Labeled Release experiment". Instruments, Methods, and Missions for Astrobiology IV. 4495: 96–108. Bibcode:2002SPIE.4495...96M. doi:10.1117/12.454748. S2CID 96639386. Archived from the original on 2020-11-09. Retrieved 2015-03-22. One speculation is that the function represents metabolism during a period of slow growth or cell division to an asymptotic level of cellular confluence, perhaps similar to terrestrial biofilms in the steady state.
Houtkooper, Joop M.; Schulze-Makuch, Dirk (22 May 2007). "A possible biogenic origin for hydrogen peroxide on Mars: the Viking results reinterpreted". International Journal of Astrobiology. 6 (2): 147–152. arXiv:physics/0610093. Bibcode:2007IJAsB...6..147H. doi:10.1017/S1473550407003746. ISSN 1475-3006.
Bianciardi G, Miller JD, Straat PA, Levin GV (March 2012). "Complexity Analysis of the Viking Labeled Release Experiments". IJASS. 13 (1): 14–26. Bibcode:2012IJASS..13...14B. doi:10.5139/IJASS.2012.13.1.14.
Horowitz NH, Hobby GL, Hubbard JS (December 1976). "The viking carbon assimilation experiments: interim report". Science. 194 (4271): 1321–2. Bibcode:1976Sci...194.1321H. doi:10.1126/science.194.4271.1321. PMID 17797093. S2CID 206569558.
Klein HP, Horowitz NH, Levin GV, Oyama VI, Lederberg J, Rich A, et al. (October 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. S2CID 24957458.
Schuerger, Andrew; Clark, Benton (March 2008). "Viking Biology Experiments: Lessons Learned and the Role of Ecology in Future Mars Life-Detection Experiments". Space Science Reviews. 135 (1–4): 233–243. Bibcode:2008SSRv..135..233S. doi:10.1007/s11214-007-9194-2. S2CID 189797714.
Klein, Harold (June 1978). "The Viking biological experiments on Mars". Icarus. 34 (3): 666. Bibcode:1978Icar...34..666K. doi:10.1016/0019-1035(78)90053-2.
Guzman, Melissa; McKay, Christopher P.; Quinn, Richard C.; Szopa, Cyril; Davila, Alfonso F.; Navarro-González, Rafael; Freissinet, Caroline (July 2018). "Identification of Chlorobenzene in the Viking Gas Chromatograph-Mass Spectrometer Data Sets: Reanalysis of Viking Mission Data Consistent With Aromatic Organic Compounds on Mars". Journal of Geophysical Research: Planets. 123 (7): 1674–1683. Bibcode:2018JGRE..123.1674G. doi:10.1029/2018JE005544. ISSN 2169-9100. S2CID 133854625. Retrieved 27 September 2020.
Beegle LW, Wilson MG, Abilleira F, Jordan JF, Wilson GR (August 2007). "A concept for NASA's Mars 2016 astrobiology field laboratory". Astrobiology. 7 (4): 545–77. Bibcode:2007AsBio...7..545B. doi:10.1089/ast.2007.0153. PMID 17723090.
Navarro-Gonzáles R, Vargas E, de la Rosa J, Raga AC, McKay CP (2010-12-15). "Reanalysis of the Viking results suggests perchlorate and organics at midlatitudes on Mars". Journal of Geophysical Research: Planets. 115 (E12010): E12010. Bibcode:2010JGRE..11512010N. doi:10.1029/2010JE003599.
Navarro-González R (2011). "Correction to "Reanalysis of the Viking results suggests perchlorate and organics at midlatitudes on Mars"". Journal of Geophysical Research. Vol. 116, no. E8. Bibcode:2011JGRE..116.8011N. doi:10.1029/2011JE003854.
Quinn RC, Martucci HF, Miller SR, Bryson CE, Grunthaner FJ, Grunthaner PJ (June 2013). "Perchlorate radiolysis on Mars and the origin of martian soil reactivity". Astrobiology. 13 (6): 515–20. Bibcode:2013AsBio..13..515Q. doi:10.1089/ast.2013.0999. PMC 3691774. PMID 23746165.
Georgiou, Christos D.; Zisimopoulos, Dimitrios; Kalaitzopoulou, Electra; Quinn, Richard C. (April 2017). "Radiation-Driven Formation of Reactive Oxygen Species in Oxychlorine-Containing Mars Surface Analogues". Astrobiology. 17 (4): 319–336. Bibcode:2017AsBio..17..319G. doi:10.1089/ast.2016.1539. PMID 28418706. Retrieved 27 September 2020.
Schulze-Makuch D, Houtkooper JM (2007-05-22). "A Possible Biogenic Origin for Hydrogen Peroxide on Mars". International Journal of Astrobiology. 6 (2): 147. arXiv:physics/0610093. Bibcode:2007IJAsB...6..147H. doi:10.1017/S1473550407003746. S2CID 8091895.
Quinn R, Zent A (1999). "Peroxide-Modified Titanium Dioxide: a Chemical Analog of Putative Martian Soil Oxidants". Journal Origins of Life and Evolution of Biospheres. 29 (1): 59–72. Bibcode:1999OLEB...29...59Q. doi:10.1023/A:1006506022182. PMID 10077869. S2CID 176902.
Levin G (2007). "Analysis of evidence of Mars life". Electroneurobiología. 15 (2): 39–47. arXiv:0705.3176. Bibcode:2007arXiv0705.3176L. ISSN 1850-1826.
Navarro-González R, Navarro KF, de la Rosa J, Iñiguez E, Molina P, Miranda LD, et al. (October 2006). "The limitations on organic detection in Mars-like soils by thermal volatilization-gas chromatography-MS and their implications for the Viking results". Proceedings of the National Academy of Sciences of the United States of America. 103 (44): 16089–94. Bibcode:2006PNAS..10316089N. doi:10.1073/pnas.0604210103. PMC 1621051. PMID 17060639.
Levin GV, Straat PA (October 2016). "The Case for Extant Life on Mars and Its Possible Detection by the Viking Labeled Release Experiment". Astrobiology. 16 (10): 798–810. Bibcode:2016AsBio..16..798L. doi:10.1089/ast.2015.1464. PMC 6445182. PMID 27626510.
Webster CR, Mahaffy PR, Atreya SK, Flesch GJ, Farley KA (October 2013). "Low upper limit to methane abundance on Mars" (PDF). Science. 342 (6156): 355–7. Bibcode:2013Sci...342..355W. doi:10.1126/science.1242902. PMID 24051245. S2CID 43194305.
Webster, Christopher R.; Mahaffy, Paul R.; Pla-Garcia, Jorge; Rafkin, Scot C. R.; Moores, John E.; Atreya, Sushil K.; Flesch, Gregory J.; Malespin, Charles A.; Teinturier, Samuel M.; Kalucha, Hemani; Smith, Christina L.; Viúdez-Moreiras, Daniel; Vasavada, Ashwin R. (2021-06-01). "Day-night differences in Mars methane suggest nighttime containment at Gale crater". Astronomy & Astrophysics. 650: A166. Bibcode:2021A&A...650A.166W. doi:10.1051/0004-6361/202040030. ISSN 0004-6361.

latimes.com (Global: 22^nd place; English: 19^th place)

Johnson J (2008-08-06). "Perchlorate found in Martian soil". Los Angeles Times.

liebertpub.com (Global: low place; English: low place)

Georgiou, Christos D.; Zisimopoulos, Dimitrios; Kalaitzopoulou, Electra; Quinn, Richard C. (April 2017). "Radiation-Driven Formation of Reactive Oxygen Species in Oxychlorine-Containing Mars Surface Analogues". Astrobiology. 17 (4): 319–336. Bibcode:2017AsBio..17..319G. doi:10.1089/ast.2016.1539. PMID 28418706. Retrieved 27 September 2020.

msss.com (Global: low place; English: low place)

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