Scientists have announced the discovery of a freezing Earth-mass world 13,000 light years away.
NASA has announced the discovery of seven new planets including three within their star's habitable zone.
The space agency is due to announce its latest findings at a press conference on Wednesday morning.
Astronomers believe that a planet 14 light years away may be a promising place to look for alien life.
The Very Large Telescope (VLT) in Chile will soon be seeking out habitable worlds around Alpha Centauri.
Scientists have identified two distant worlds which could be ideal places to look for alien life.
The newly discovered exoplanet experiences days lasting up to 140 Earth-years thanks to its trio of suns.
Astronomers have revealed the discovery of a Jupiter-sized exoplanet in a distant binary star system.
The incredible new haul has more than doubled the total number of known extrasolar worlds to over 3,200.
For the first time scientists have been able to analyze the atmosphere of a 'super-Earth' exoplanet.
A potentially habitable terrestrial planet has been discovered in the relatively nearby Wolf 1061 system.
A newly identified extrasolar planet is so close by that it should be possible to observe its atmosphere.
Members of the public have been asked to help determine what to call 32 distant extrasolar worlds.
Astronomers have identified the smallest ever exoplanet to be directly photographed through a telescope.
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.