List of extrasolar candidates for liquid water information
Possible existence of liquid water beyond Earth
See also: List of potentially habitable exoplanets
This article needs to be updated. Please help update this article to reflect recent events or newly available information.(January 2022)
Artist's illustration of the signatures of water in exoplanet atmospheres by Hubble.[1] Water vapor and ice have been found to be common elements of extraterrestrial atmospheres, however water in liquid form has not been confirmed beyond the Earth.
Extraterrestrial liquid water in the Solar System is likely uncommon, although it has been hypothesized to exist in some of its moons, and to have formerly existed on Mars and Venus.[2][3] Extrasolar liquid water has not yet been confirmed to exist. The following list contains candidates that meet the following criteria:
Confirmed object of Earth mass or greater[a] orbiting within a circumstellar habitable zone (CHZ)
May not be a star
Has been studied for more than a year
Confirmed surface with strong evidence for it being either solid or liquid
Water vapour detected in its atmosphere
Gravitational, radio or differentation models predict a wet stratum
Most known extrasolar planetary systems appear to have very different compositions from the Solar System, though there is sampling bias arising from the detection methods.
The goal of current searches is to find Earth-sized planets in the habitable zone of their planetary systems (also called the Goldilocks zone).[4] Planets with oceans could include Earth-sized moons of giant planets, though it remains speculative whether such 'moons' really exist. The Kepler telescope might be sensitive enough to detect them.[5] But there is evidence that rocky planets hosting water may be commonplace throughout the Milky Way.[6]
In June 2020, NASA scientists reported that it is likely that exoplanets with oceans may be common in the Milky Way galaxy, based on mathematical modeling studies.[7]
^"Hubble traces faint signatures of water in exoplanet atmospheres (artist's illustration)". ESA/Hubble Press Release. Retrieved 5 December 2013.
^"Mars Probably Once Had A Huge Ocean". Sciencedaily.com. 2007-06-13. Retrieved 2012-01-22.
^Owen, (2007), news.nationalgeographic.com/news/2007/11/071128-venus-earth_2.html Archived 2016-05-11 at the Wayback Machine
^"Habitable planets may be common". Newscientist.com. Retrieved 2012-01-22.
^"The hunt for habitable exomoons". Astronomynow.com. 2009-09-04. Retrieved 2012-01-22.
^"Water, water everywhere". Astronomynow.com. Retrieved 2012-01-22.
^Shekhtman, Lonnie; et al. (18 June 2020). "Are Planets with Oceans Common in the Galaxy? It's Likely, NASA Scientists Find". NASA. Retrieved 20 June 2020.
Cite error: There are <ref group=lower-alpha> tags or {{efn}} templates on this page, but the references will not show without a {{reflist|group=lower-alpha}} template or {{notelist}} template (see the help page).
and 22 Related for: List of extrasolar candidates for liquid water information
existed on Mars and Venus. Extrasolarliquidwater has not yet been confirmed to exist. The following list contains candidates that meet the following criteria:...
Liquidwater is thought to be common in other planetary systems, despite the lack of conclusive evidence, and there is a growing listofextrasolar candidates...
List of extrasolarcandidatesforliquidwaterListof hottest exoplanets Listof coolest exoplanets Listof multiplanetary systems Listof nearest exoplanets...
An exoplanet or extrasolar planet is a planet outside the Solar System. The first possible evidence of an exoplanet was noted in 1917 but was not then...
water's triple point, water exists on Earth as a solid, a liquid, and a gas. It forms precipitation in the form of rain and aerosols in the form of fog...
listof 1235 extrasolar planet candidates, including six that are "Earth-size" or "super-Earth-size" (i.e. they have a radius less than twice that of...
uncovered the properties of three previously known extrasolar planets. Public Kepler data has also been used by groups independent of NASA, such as the Planet...
property of being less dense than its liquid form. The tetrahedral-angled hydrogen-bonded hexagonal rings are also the mechanism that causes liquidwater to...
An exoplanet (extrasolar planet) is a planet located outside the Solar System. The first evidence of an exoplanet was noted as early as 1917, but was not...
c) are of particular interest as they may potentially possess natural satellites with liquidwater on the surface. Habitability ofextrasolar moons will...
List of extrasolarcandidatesforliquidwaterListof hottest exoplanets Listof coolest exoplanets Listof multiplanetary systems Listof nearest exoplanets...
extrasolar planet candidates, including 54 that may be in the habitable zone. Six of the candidates in this zone are smaller than twice the size of Earth...
for and study ofextrasolar planets, the possibility was argued through philosophy and science fiction. Philosophers have suggested that the size of the...
zones of their respective host stars, Kepler-62 and Kepler-69. The new exoplanets are considered prime candidatesfor possessing liquidwater and thus...
Global Information
