ASTRONAUTS visiting Mars could unearth a museum of alien fossils that may have belonged to an intelligent civilisation.

Three teams of astronomers have been fascinated by an alien world known as K2-18b. But what's all the fuss about? In September, two teams announced that they had found signs of liquid water in the ...

Scientists have discovered a new type of alien planet -- a steamy waterworld that is larger than Earth but smaller than Uranus. The standard-bearer for this new class of exoplanet is called GJ ...

In a major first, scientists have detected water vapor and possibly even liquid water clouds on a strange exoplanet that lies in the habitable zone of its host star about 110 light-years from Earth.

Water is ‘common’ on alien worlds, scientists say in finding that could transform search for extraterrestrial life. Water is thought to be a key component to live anywhere in the universe ...

Earth" that is located about 154 light-years away and is nearly twice as big and four times as massive as our planet.

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Alien life on a new planet “may not have DNA like humans but might walk on two legs”, experts have revealed.. It follows the discovery of an extraterrestrial world around 120 light years away ...

Scientists have found evidence of enough liquid water on Mars to cover the entire planet with an ocean a mile deep, according to new research published Monday, and which scientists said could, in ...

K2-18b is considered a Hycean exoplanet – as opposed to a rocky planet – due to its potential to possess a hydrogen-rich atmosphere and surface covered in ocean water.. Since it was discovered ...

Astronomers using the Hubble Space Telescope have discovered a new class of alien planets, so-called steamy waterworlds. The discovery is based on the planet GJ 1214b, which appears hot, wet and ...