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Planetary habitability in the Solar System is the study that searches the possible existence of past or present extraterrestrial life in those celestial bodies. As exoplanets are too far away and can only be studied by indirect means, the celestial bodies in the Solar System allow for a much more detailed study: direct telescope observation, space probes, rovers and even human spaceflight.
Liquid water is thought by most astrobiologists to be an essential prerequisite for extraterrestrial life. There is growing evidence of subsurface liquid water on several moons in the Solar System orbiting the gas giants Jupiter, Saturn, Uranus, and Neptune.
Understanding planetary habitability is partly an extrapolation of the conditions on Earth, as this is the only planet known to support life.. Planetary habitability is the measure of a planet's or a natural satellite's potential to develop and maintain an environment hospitable to life. [1]
The James Webb Space Telescope has detected carbon, a building block of life, on the surface of Jupiter’s icy moon Europa.
The mission to find extraterrestrial life has begun. At 16:06 GMT, NASA launched the Europa Clipper ship from Cape Canaveral, Florida, to search for signs of life on one of Jupiter’s frozen moons.
Jupiter is usually the fourth-brightest object in the sky (after the Sun, the Moon, and Venus), [102] although at opposition Mars can appear brighter than Jupiter. Depending on Jupiter's position with respect to the Earth, it can vary in visual magnitude from as bright as −2.94 at opposition down to −1.66 during conjunction with the Sun ...
"There is very strong evidence that the ingredients for life exist on Europa. But we have to go there to find out," said planetary scientist Bonnie Buratti of NASA's Jet Propulsion Laboratory, the ...
Rare Earth argues that complex life cannot exist on large gaseous planets like Jupiter and Saturn (top row) or Uranus and Neptune (top middle) or smaller planets such as Mars and Mercury. The Rare Earth hypothesis argues that life requires terrestrial planets like Earth, and since gas giants lack such a surface, that complex life cannot arise ...