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Butler, R. P.; Wright, J. T.; Marcy, G. W.; Fischer, D. A.; Vogt, S. S.; Tinney, C. G.; Jones, H. R. A.; Carter, B. D.; Johnson, J. A.; McCarthy, C.; Penny, A. J. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. S2CID119067572.
Anglada-Escude, Guillem; Arriagada, Pamela; Vogt, Steven; Rivera, Eugenio J.; Butler, R. Paul; Crane, Jeffrey D.; Shectman, Stephen A.; Thompson, Ian B.; Minniti, Dante (2012). "A planetary system around the nearby M dwarf GJ 667C with at least one super-Earth in its habitable zone". The Astrophysical Journal. 751 (1): L16. arXiv:1202.0446. Bibcode:2012ApJ...751L..16A. doi:10.1088/2041-8205/751/1/L16. S2CID16531923.
Tuomi, Mikko; Anglada-Escudé, Guillem; Gerlach, Enrico; Jones, Hugh R. A.; Reiners, Ansgar; Rivera, Eugenio J.; Vogt, Steven S.; Butler, R. Paul (17 December 2012). "Habitable-zone super-Earth candidate in a six-planet system around the K2.5V star HD 40307". Astronomy & Astrophysics. 549: A48. arXiv:1211.1617. Bibcode:2013A&A...549A..48T. doi:10.1051/0004-6361/201220268. S2CID7424216.
Tuomi, M.; Jones, H. R. A.; Jenkins, J. S.; Tinney, C. G.; Butler, R. P.; Vogt, S. S.; Barnes, J. R.; Wittenmyer, R. A.; o'Toole, S.; Horner, J.; Bailey, J.; Carter, B. D.; Wright, D. J.; Salter, G. S.; Pinfield, D. (2013). "Signals embedded in the radial velocity noise". Astronomy & Astrophysics. 551: A79. arXiv:1212.4277. Bibcode:2013A&A...551A..79T. doi:10.1051/0004-6361/201220509. S2CID2390534.
Barclay, Thomas; Burke, Christopher J.; Howell, Steve B.; Rowe, Jason F.; Huber, Daniel; Isaacson, Howard; Jenkins, Jon M.; Kolbl, Rea; Marcy, Geoffrey W. (2013). "A Super-Earth-Sized Planet Orbiting in or Near the Habitable Zone Around a Sun-Like Star". The Astrophysical Journal. 768 (2): 101. arXiv:1304.4941. Bibcode:2013ApJ...768..101B. doi:10.1088/0004-637X/768/2/101. S2CID51490784.
Jenkins, Jon M.; Twicken, Joseph D.; Batalha, Natalie M.; Caldwell, Douglas A.; Cochran, William D.; Endl, Michael; Latham, David W.; Esquerdo, Gilbert A.; Seader, Shawn; Bieryla, Allyson; Petigura, Erik; Ciardi, David R.; Marcy, Geoffrey W.; Isaacson, Howard; Huber, Daniel; Rowe, Jason F.; Torres, Guillermo; Bryson, Stephen T.; Buchhave, Lars; Ramirez, Ivan; Wolfgang, Angie; Li, Jie; Campbell, Jennifer R.; Tenenbaum, Peter; Sanderfer, Dwight; Henze, Christopher E.; Catanzarite, Joseph H.; Gilliland, Ronald L.; Borucki, William J. (23 July 2015). "Discovery and Validation of Kepler-452b: A 1.6 R🜨 Super Earth Exoplanet in the Habitable Zone of a G2 Star". The Astronomical Journal. 150 (2): 56. arXiv:1507.06723. Bibcode:2015AJ....150...56J. doi:10.1088/0004-6256/150/2/56. ISSN1538-3881. S2CID26447864.
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Charbonneau, David; Zachory K. Berta; Jonathan Irwin; Christopher J. Burke; Philip Nutzman; Lars A. Buchhave; Christophe Lovis; Xavier Bonfils; et al. (2009). "A super-Earth transiting a nearby low-mass star". Nature. 462 (17 December 2009): 891–894. arXiv:0912.3229. Bibcode:2009Natur.462..891C. doi:10.1038/nature08679. PMID20016595. S2CID4360404.
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Butler, R. P.; Wright, J. T.; Marcy, G. W.; Fischer, D. A.; Vogt, S. S.; Tinney, C. G.; Jones, H. R. A.; Carter, B. D.; Johnson, J. A.; McCarthy, C.; Penny, A. J. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. S2CID119067572.
Anglada-Escude, Guillem; Arriagada, Pamela; Vogt, Steven; Rivera, Eugenio J.; Butler, R. Paul; Crane, Jeffrey D.; Shectman, Stephen A.; Thompson, Ian B.; Minniti, Dante (2012). "A planetary system around the nearby M dwarf GJ 667C with at least one super-Earth in its habitable zone". The Astrophysical Journal. 751 (1): L16. arXiv:1202.0446. Bibcode:2012ApJ...751L..16A. doi:10.1088/2041-8205/751/1/L16. S2CID16531923.
Tuomi, Mikko; Anglada-Escudé, Guillem; Gerlach, Enrico; Jones, Hugh R. A.; Reiners, Ansgar; Rivera, Eugenio J.; Vogt, Steven S.; Butler, R. Paul (17 December 2012). "Habitable-zone super-Earth candidate in a six-planet system around the K2.5V star HD 40307". Astronomy & Astrophysics. 549: A48. arXiv:1211.1617. Bibcode:2013A&A...549A..48T. doi:10.1051/0004-6361/201220268. S2CID7424216.
Tuomi, M.; Jones, H. R. A.; Jenkins, J. S.; Tinney, C. G.; Butler, R. P.; Vogt, S. S.; Barnes, J. R.; Wittenmyer, R. A.; o'Toole, S.; Horner, J.; Bailey, J.; Carter, B. D.; Wright, D. J.; Salter, G. S.; Pinfield, D. (2013). "Signals embedded in the radial velocity noise". Astronomy & Astrophysics. 551: A79. arXiv:1212.4277. Bibcode:2013A&A...551A..79T. doi:10.1051/0004-6361/201220509. S2CID2390534.
Barclay, Thomas; Burke, Christopher J.; Howell, Steve B.; Rowe, Jason F.; Huber, Daniel; Isaacson, Howard; Jenkins, Jon M.; Kolbl, Rea; Marcy, Geoffrey W. (2013). "A Super-Earth-Sized Planet Orbiting in or Near the Habitable Zone Around a Sun-Like Star". The Astrophysical Journal. 768 (2): 101. arXiv:1304.4941. Bibcode:2013ApJ...768..101B. doi:10.1088/0004-637X/768/2/101. S2CID51490784.
Jenkins, Jon M.; Twicken, Joseph D.; Batalha, Natalie M.; Caldwell, Douglas A.; Cochran, William D.; Endl, Michael; Latham, David W.; Esquerdo, Gilbert A.; Seader, Shawn; Bieryla, Allyson; Petigura, Erik; Ciardi, David R.; Marcy, Geoffrey W.; Isaacson, Howard; Huber, Daniel; Rowe, Jason F.; Torres, Guillermo; Bryson, Stephen T.; Buchhave, Lars; Ramirez, Ivan; Wolfgang, Angie; Li, Jie; Campbell, Jennifer R.; Tenenbaum, Peter; Sanderfer, Dwight; Henze, Christopher E.; Catanzarite, Joseph H.; Gilliland, Ronald L.; Borucki, William J. (23 July 2015). "Discovery and Validation of Kepler-452b: A 1.6 R🜨 Super Earth Exoplanet in the Habitable Zone of a G2 Star". The Astronomical Journal. 150 (2): 56. arXiv:1507.06723. Bibcode:2015AJ....150...56J. doi:10.1088/0004-6256/150/2/56. ISSN1538-3881. S2CID26447864.
Nicholson, W. L.; Moeller, R.; Horneck, G.; PROTECT Team (2012). "Transcriptomic Responses of Germinating Bacillus subtilis Spores Exposed to 1.5 Years of Space and Simulated Martian Conditions on the EXPOSE-E Experiment PROTECT". Astrobiology. 12 (5): 469–86. Bibcode:2012AsBio..12..469N. doi:10.1089/ast.2011.0748. PMID22680693.
Fogg, M. J. (1992). "An Estimate of the Prevalence of Biocompatible and Habitable Planets". Journal of the British Interplanetary Society. 45 (1): 3–12. Bibcode:1992JBIS...45....3F. PMID11539465.
Scully, Jennifer E.C.; Russell, Christopher T.; Yin, An; Jaumann, Ralf; Carey, Elizabeth; Castillo-Rogez, Julie; McSween, Harry Y.; Raymond, Carol A.; Reddy, Vishnu; Le Corre, Lucille (2015). "Geomorphological evidence for transient water flow on Vesta". Earth and Planetary Science Letters. 411: 151–163. Bibcode:2015E&PSL.411..151S. doi:10.1016/j.epsl.2014.12.004. ISSN0012-821X.
Franck, S.; von Bloh, W.; Bounama, C.; Steffen, M.; Schönberner, D.; Schellnhuber, H.-J. (2002). "Habitable Zones and the Number of Gaia's Sisters"(PDF). In Montesinos, Benjamin; Giménez, Alvaro; Guinan, Edward F. (eds.). ASP Conference Series. The Evolving Sun and its Influence on Planetary Environments. Astronomical Society of the Pacific. pp. 261–272. Bibcode:2002ASPC..269..261F. ISBN1-58381-109-5. Retrieved April 26, 2013.
Charbonneau, David; Zachory K. Berta; Jonathan Irwin; Christopher J. Burke; Philip Nutzman; Lars A. Buchhave; Christophe Lovis; Xavier Bonfils; et al. (2009). "A super-Earth transiting a nearby low-mass star". Nature. 462 (17 December 2009): 891–894. arXiv:0912.3229. Bibcode:2009Natur.462..891C. doi:10.1038/nature08679. PMID20016595. S2CID4360404.
Butler, R. P.; Wright, J. T.; Marcy, G. W.; Fischer, D. A.; Vogt, S. S.; Tinney, C. G.; Jones, H. R. A.; Carter, B. D.; Johnson, J. A.; McCarthy, C.; Penny, A. J. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. S2CID119067572.
Anglada-Escude, Guillem; Arriagada, Pamela; Vogt, Steven; Rivera, Eugenio J.; Butler, R. Paul; Crane, Jeffrey D.; Shectman, Stephen A.; Thompson, Ian B.; Minniti, Dante (2012). "A planetary system around the nearby M dwarf GJ 667C with at least one super-Earth in its habitable zone". The Astrophysical Journal. 751 (1): L16. arXiv:1202.0446. Bibcode:2012ApJ...751L..16A. doi:10.1088/2041-8205/751/1/L16. S2CID16531923.
Tuomi, Mikko; Anglada-Escudé, Guillem; Gerlach, Enrico; Jones, Hugh R. A.; Reiners, Ansgar; Rivera, Eugenio J.; Vogt, Steven S.; Butler, R. Paul (17 December 2012). "Habitable-zone super-Earth candidate in a six-planet system around the K2.5V star HD 40307". Astronomy & Astrophysics. 549: A48. arXiv:1211.1617. Bibcode:2013A&A...549A..48T. doi:10.1051/0004-6361/201220268. S2CID7424216.
Tuomi, M.; Jones, H. R. A.; Jenkins, J. S.; Tinney, C. G.; Butler, R. P.; Vogt, S. S.; Barnes, J. R.; Wittenmyer, R. A.; o'Toole, S.; Horner, J.; Bailey, J.; Carter, B. D.; Wright, D. J.; Salter, G. S.; Pinfield, D. (2013). "Signals embedded in the radial velocity noise". Astronomy & Astrophysics. 551: A79. arXiv:1212.4277. Bibcode:2013A&A...551A..79T. doi:10.1051/0004-6361/201220509. S2CID2390534.
Barclay, Thomas; Burke, Christopher J.; Howell, Steve B.; Rowe, Jason F.; Huber, Daniel; Isaacson, Howard; Jenkins, Jon M.; Kolbl, Rea; Marcy, Geoffrey W. (2013). "A Super-Earth-Sized Planet Orbiting in or Near the Habitable Zone Around a Sun-Like Star". The Astrophysical Journal. 768 (2): 101. arXiv:1304.4941. Bibcode:2013ApJ...768..101B. doi:10.1088/0004-637X/768/2/101. S2CID51490784.
Jenkins, Jon M.; Twicken, Joseph D.; Batalha, Natalie M.; Caldwell, Douglas A.; Cochran, William D.; Endl, Michael; Latham, David W.; Esquerdo, Gilbert A.; Seader, Shawn; Bieryla, Allyson; Petigura, Erik; Ciardi, David R.; Marcy, Geoffrey W.; Isaacson, Howard; Huber, Daniel; Rowe, Jason F.; Torres, Guillermo; Bryson, Stephen T.; Buchhave, Lars; Ramirez, Ivan; Wolfgang, Angie; Li, Jie; Campbell, Jennifer R.; Tenenbaum, Peter; Sanderfer, Dwight; Henze, Christopher E.; Catanzarite, Joseph H.; Gilliland, Ronald L.; Borucki, William J. (23 July 2015). "Discovery and Validation of Kepler-452b: A 1.6 R🜨 Super Earth Exoplanet in the Habitable Zone of a G2 Star". The Astronomical Journal. 150 (2): 56. arXiv:1507.06723. Bibcode:2015AJ....150...56J. doi:10.1088/0004-6256/150/2/56. ISSN1538-3881. S2CID26447864.
Nicholson, W. L.; Moeller, R.; Horneck, G.; PROTECT Team (2012). "Transcriptomic Responses of Germinating Bacillus subtilis Spores Exposed to 1.5 Years of Space and Simulated Martian Conditions on the EXPOSE-E Experiment PROTECT". Astrobiology. 12 (5): 469–86. Bibcode:2012AsBio..12..469N. doi:10.1089/ast.2011.0748. PMID22680693.
Fogg, M. J. (1992). "An Estimate of the Prevalence of Biocompatible and Habitable Planets". Journal of the British Interplanetary Society. 45 (1): 3–12. Bibcode:1992JBIS...45....3F. PMID11539465.
Charbonneau, David; Zachory K. Berta; Jonathan Irwin; Christopher J. Burke; Philip Nutzman; Lars A. Buchhave; Christophe Lovis; Xavier Bonfils; et al. (2009). "A super-Earth transiting a nearby low-mass star". Nature. 462 (17 December 2009): 891–894. arXiv:0912.3229. Bibcode:2009Natur.462..891C. doi:10.1038/nature08679. PMID20016595. S2CID4360404.
Nicholson, W. L.; Moeller, R.; Horneck, G.; PROTECT Team (2012). "Transcriptomic Responses of Germinating Bacillus subtilis Spores Exposed to 1.5 Years of Space and Simulated Martian Conditions on the EXPOSE-E Experiment PROTECT". Astrobiology. 12 (5): 469–86. Bibcode:2012AsBio..12..469N. doi:10.1089/ast.2011.0748. PMID22680693.
Franck, S.; von Bloh, W.; Bounama, C.; Steffen, M.; Schönberner, D.; Schellnhuber, H.-J. (2002). "Habitable Zones and the Number of Gaia's Sisters"(PDF). In Montesinos, Benjamin; Giménez, Alvaro; Guinan, Edward F. (eds.). ASP Conference Series. The Evolving Sun and its Influence on Planetary Environments. Astronomical Society of the Pacific. pp. 261–272. Bibcode:2002ASPC..269..261F. ISBN1-58381-109-5. Retrieved April 26, 2013.
Scharf, Caleb A. (2011-12-08). "You Can't Always Tell an Exoplanet by Its Size". Scientific American. Retrieved 2012-09-20.: "If it [Kepler-22b] had a similar composition to Earth, then we're looking at a world in excess of about 40 Earth masses".
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David Grinspoon (July 13, 2012) [December 12, 2007]. "Who Speaks for Earth?". Seed. Archived from the original on 2012-07-13. Retrieved 2021-06-24.
Charbonneau, David; Zachory K. Berta; Jonathan Irwin; Christopher J. Burke; Philip Nutzman; Lars A. Buchhave; Christophe Lovis; Xavier Bonfils; et al. (2009). "A super-Earth transiting a nearby low-mass star". Nature. 462 (17 December 2009): 891–894. arXiv:0912.3229. Bibcode:2009Natur.462..891C. doi:10.1038/nature08679. PMID20016595. S2CID4360404.
Butler, R. P.; Wright, J. T.; Marcy, G. W.; Fischer, D. A.; Vogt, S. S.; Tinney, C. G.; Jones, H. R. A.; Carter, B. D.; Johnson, J. A.; McCarthy, C.; Penny, A. J. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv:astro-ph/0607493. Bibcode:2006ApJ...646..505B. doi:10.1086/504701. S2CID119067572.
Anglada-Escude, Guillem; Arriagada, Pamela; Vogt, Steven; Rivera, Eugenio J.; Butler, R. Paul; Crane, Jeffrey D.; Shectman, Stephen A.; Thompson, Ian B.; Minniti, Dante (2012). "A planetary system around the nearby M dwarf GJ 667C with at least one super-Earth in its habitable zone". The Astrophysical Journal. 751 (1): L16. arXiv:1202.0446. Bibcode:2012ApJ...751L..16A. doi:10.1088/2041-8205/751/1/L16. S2CID16531923.
Tuomi, Mikko; Anglada-Escudé, Guillem; Gerlach, Enrico; Jones, Hugh R. A.; Reiners, Ansgar; Rivera, Eugenio J.; Vogt, Steven S.; Butler, R. Paul (17 December 2012). "Habitable-zone super-Earth candidate in a six-planet system around the K2.5V star HD 40307". Astronomy & Astrophysics. 549: A48. arXiv:1211.1617. Bibcode:2013A&A...549A..48T. doi:10.1051/0004-6361/201220268. S2CID7424216.
Tuomi, M.; Jones, H. R. A.; Jenkins, J. S.; Tinney, C. G.; Butler, R. P.; Vogt, S. S.; Barnes, J. R.; Wittenmyer, R. A.; o'Toole, S.; Horner, J.; Bailey, J.; Carter, B. D.; Wright, D. J.; Salter, G. S.; Pinfield, D. (2013). "Signals embedded in the radial velocity noise". Astronomy & Astrophysics. 551: A79. arXiv:1212.4277. Bibcode:2013A&A...551A..79T. doi:10.1051/0004-6361/201220509. S2CID2390534.
Barclay, Thomas; Burke, Christopher J.; Howell, Steve B.; Rowe, Jason F.; Huber, Daniel; Isaacson, Howard; Jenkins, Jon M.; Kolbl, Rea; Marcy, Geoffrey W. (2013). "A Super-Earth-Sized Planet Orbiting in or Near the Habitable Zone Around a Sun-Like Star". The Astrophysical Journal. 768 (2): 101. arXiv:1304.4941. Bibcode:2013ApJ...768..101B. doi:10.1088/0004-637X/768/2/101. S2CID51490784.
Jenkins, Jon M.; Twicken, Joseph D.; Batalha, Natalie M.; Caldwell, Douglas A.; Cochran, William D.; Endl, Michael; Latham, David W.; Esquerdo, Gilbert A.; Seader, Shawn; Bieryla, Allyson; Petigura, Erik; Ciardi, David R.; Marcy, Geoffrey W.; Isaacson, Howard; Huber, Daniel; Rowe, Jason F.; Torres, Guillermo; Bryson, Stephen T.; Buchhave, Lars; Ramirez, Ivan; Wolfgang, Angie; Li, Jie; Campbell, Jennifer R.; Tenenbaum, Peter; Sanderfer, Dwight; Henze, Christopher E.; Catanzarite, Joseph H.; Gilliland, Ronald L.; Borucki, William J. (23 July 2015). "Discovery and Validation of Kepler-452b: A 1.6 R🜨 Super Earth Exoplanet in the Habitable Zone of a G2 Star". The Astronomical Journal. 150 (2): 56. arXiv:1507.06723. Bibcode:2015AJ....150...56J. doi:10.1088/0004-6256/150/2/56. ISSN1538-3881. S2CID26447864.
No one agrees what it means for a planet to be "habitable". Neel V. Patel, MIT Technology Review. 2 October 2019. Quote: surface conditions are dependent on a host of different individual properties of that planet, such as internal and geological processes, magnetic field evolution, climate, atmospheric escape, rotational effects, tidal forces, orbits, star formation and evolution, unusual conditions like binary star systems, and gravitational perturbations from passing bodies.
Zaitsev, A. L. (June 2004). "Transmission and reasonable signal searches in the Universe"(PDF). Horizons of the Universe Передача и поиски разумных сигналов во Вселенной. Plenary presentation at the National Astronomical Conference WAC-2004 "Horizons of the Universe", Moscow, Moscow State University, June 7, 2004 (in Russian). Moscow. Archived from the original on 2019-05-30. Retrieved 2013-06-30.
David Grinspoon (July 13, 2012) [December 12, 2007]. "Who Speaks for Earth?". Seed. Archived from the original on 2012-07-13. Retrieved 2021-06-24.
Scully, Jennifer E.C.; Russell, Christopher T.; Yin, An; Jaumann, Ralf; Carey, Elizabeth; Castillo-Rogez, Julie; McSween, Harry Y.; Raymond, Carol A.; Reddy, Vishnu; Le Corre, Lucille (2015). "Geomorphological evidence for transient water flow on Vesta". Earth and Planetary Science Letters. 411: 151–163. Bibcode:2015E&PSL.411..151S. doi:10.1016/j.epsl.2014.12.004. ISSN0012-821X.
Jenkins, Jon M.; Twicken, Joseph D.; Batalha, Natalie M.; Caldwell, Douglas A.; Cochran, William D.; Endl, Michael; Latham, David W.; Esquerdo, Gilbert A.; Seader, Shawn; Bieryla, Allyson; Petigura, Erik; Ciardi, David R.; Marcy, Geoffrey W.; Isaacson, Howard; Huber, Daniel; Rowe, Jason F.; Torres, Guillermo; Bryson, Stephen T.; Buchhave, Lars; Ramirez, Ivan; Wolfgang, Angie; Li, Jie; Campbell, Jennifer R.; Tenenbaum, Peter; Sanderfer, Dwight; Henze, Christopher E.; Catanzarite, Joseph H.; Gilliland, Ronald L.; Borucki, William J. (23 July 2015). "Discovery and Validation of Kepler-452b: A 1.6 R🜨 Super Earth Exoplanet in the Habitable Zone of a G2 Star". The Astronomical Journal. 150 (2): 56. arXiv:1507.06723. Bibcode:2015AJ....150...56J. doi:10.1088/0004-6256/150/2/56. ISSN1538-3881. S2CID26447864.