Researchers believe that humanity would be more likely to welcome than fear the discovery of alien life.
It is looking increasingly likely that the Trappist-1 system's seven worlds could be home to alien life.
Scientists have identified a diverse group of organisms within fossils dating back 3.45 billion years.
Scientists believe that interstellar dust streams might be able to transfer organisms between planets.
NASA has played down the suggestion that it is on the verge of announcing the discovery of alien life.
The hacktivist group has suggested that NASA may be on the verge of making a very important announcement.
A new proposal has been put forward to send a spacecraft to look for signs of alien life on Europa.
The space agency has discovered all the crucial ingredients for life in the oceans of Saturn's icy moon.
A new paper has suggested using a lottery and savings bond as a way to fund the search for alien life.
Britain's wartime Prime Minister wrote many articles long before ever stepping foot in Downing Street.
Scientists are hoping to develop a mission to learn once and for all whether there is life on Europa.
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.
Extrasolar planets may not be the only place where it is possible to find signs of extraterrestrial life.
Scientists believe that a nearby extrasolar planet is 'likely' to be capable of supporting alien life.
Scientists have identified two distant worlds which could be ideal places to look for alien life.
Mysterious silica formations photographed in a Martian crater could represent evidence of alien life.
Even if we do find a habitable planet, could its indigenous life forms have already died out long ago ?
Charles Bolden has commented on what would happen if NASA encountered an extraterrestrial life form.
NASA's Cassini spacecraft is set to embark on its closest and most daring flyby of the moon to date.