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 ...

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.

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 ...

Water found on a potentially life-friendly alien planet. A super-Earth about 111 light-years away is “the best candidate for habitability that we know right now,” astronomers say.

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 ...

Scientists have found water vapour on a “super-Earth” for the first time – in a major step forward in the search for alien life. The exoplanet, known as K2-18b, is perhaps the best candidate ...

NASA's James Webb Space Telescope (JWST) provided the first direct image of a planet with a mass similar to Saturn's, ...

Astronomers have created a detailed 'weather map' of WASP-43b, a 'hot Jupiter' some 260 light-years from Earth with supersonic winds and temperatures that would melt steel.

Signs of life on alien planet K2-18b? ... This artist's impression depicts what a water world with a hydrogen atmosphere, such as planet K2-18b, might look like. A. Smith, N ...

NASA's James Webb Space Telescope (JWST) has found water swirling in the air of a distant alien planet, a new study reports. That exotic world is TOI-421 b, a boiling-hot "sub-Neptune" orbiting a ...

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 ...