Publication Date:
2014-04-20
Description:
The quest for Earth-like planets is a major focus of current exoplanet research. Although planets that are Earth-sized and smaller have been detected, these planets reside in orbits that are too close to their host star to allow liquid water on their surfaces. We present the detection of Kepler-186f, a 1.11 +/- 0.14 Earth-radius planet that is the outermost of five planets, all roughly Earth-sized, that transit a 0.47 +/- 0.05 solar-radius star. The intensity and spectrum of the star's radiation place Kepler-186f in the stellar habitable zone, implying that if Kepler-186f has an Earth-like atmosphere and water at its surface, then some of this water is likely to be in liquid form.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Quintana, Elisa V -- Barclay, Thomas -- Raymond, Sean N -- Rowe, Jason F -- Bolmont, Emeline -- Caldwell, Douglas A -- Howell, Steve B -- Kane, Stephen R -- Huber, Daniel -- Crepp, Justin R -- Lissauer, Jack J -- Ciardi, David R -- Coughlin, Jeffrey L -- Everett, Mark E -- Henze, Christopher E -- Horch, Elliott -- Isaacson, Howard -- Ford, Eric B -- Adams, Fred C -- Still, Martin -- Hunter, Roger C -- Quarles, Billy -- Selsis, Franck -- New York, N.Y. -- Science. 2014 Apr 18;344(6181):277-80. doi: 10.1126/science.1249403.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉SETI Institute, 189 Bernardo Avenue, Suite 100, Mountain View, CA 94043, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24744370" target="_blank"〉PubMed〈/a〉
Keywords:
Earth (Planet)
;
Exobiology
;
Extraterrestrial Environment
;
*Planets
;
*Stars, Celestial
;
Water
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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