Astronomers have identified a planet the size of Mars orbiting a star 200 light years from the Earth.
Scientists have argued that a nearby Earth-like world dismissed as 'noise' is actually a real planet.
Some extrasolar planets that appear to be habitable may have lost the capacity to support life long ago.
Scientists in Australia have determined that Earth-like planets are likely to be commonplace.
Astronomers have found a planet with rings over 200 times larger than those found around Saturn.
A solar system dating back billions of years points to the likelihood that Earth-sized worlds are common.
NASA's Kepler space telescope has made its first discovery since being crippled by a technical fault.
Astronomers have found signs of water vapor on a planet located around 120 light years from Earth.
Extrasolar planets with a companion world tugging at them could remain habitable for much longer.
Astronomers have identified an extrasolar planet that takes 708 days to complete one orbit of its star.
A new study has concluded that an exoplanet requires a liquid water ocean in order to sustain life.
Finding signs of extraterrestrial life on an extrasolar planet is going to be a lot harder than expected.
Astronomers have located an Earth-sized world within the 'Goldilocks zone' of a distant solar system.
Astronomers believe that there could be an exoplanet orbiting a nearby pair of brown dwarf stars.
The Hubble Space Telescope has picked up signs of water in the atmospheres of several distant worlds.
Astronomers have succeeded in photographing a pink gas giant approximately 57 light years away.
Astronomers have conducted the most detailed examination yet of a Jupiter-sized planet's atmosphere.
An effort to listen out for intelligent aliens in the direction of stars with planets has drawn a blank.
Astronomers have discovered a star system with six planets, one of which could potentially support life.
Astronomers have found an alien world that could be the closest known planet smaller than the Earth.