In September, two teams announced that they had found signs of liquid water in the planet's atmosphere — a landmark discovery in the search for potentially habitable alien worlds. But the mere ...

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

NASA has confirmed the discovery of an Earth-sized planet parked right in the “habitable zone” of a distant red dwarf star.

Astronomers have discovered thousands of exoplanets, some in the so-called habitable zone, Does that mean these planets could ...

Mars just scored another point in favor of alien life. Scientists discovered signs of an ocean's worth of liquid water miles below Mars' surface. The findings, based on Marsquake measurements by ...

We may find alien life on a planet unlike any place in our Solar System — and we may find it soon. A huge planet called K2-18b has methane and carbon dioxide mixed in with its mostly hydrogen ...

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 ...

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 ...