U.S. team of researchers detected signs of two chemicals in the planet's atmosphere long considered to be "biosignatures" indicating extraterrestrial life.

Astronomers have detected molecules on exoplanet K2-18b that may have been produced by simple organisms, claiming it's the strongest evidence yet of life off Earth.

The exoplanet K2-18b could harbor a massive ocean, but scientists will need to study the planet more to see if it’s really ...

The James Webb Space Telescope spotted possible signatures for life in an exoplanet's atmosphere. Still, researchers caution it’s far too early to call the findings definitive ...

Observations by the James Webb space telescope find possible biological activity on a giant planet 124 light-years from Earth ...

The research shows that planet K2-18b is most likely a type called a Hycean planet, which is located within the habitable zone of its star and is covered in a liquid water ocean. This type of ...

Another option, as University of Cambridge astronomer Nikku Madhusudhan recently proposed, is that the planet is a "hycean world." That term means hydrogen-over-ocean, since astronomers predict ...

Another option, as University of Cambridge astronomer Nikku Madhusudhan recently proposed, is that the planet is a “hycean world”. That term means hydrogen-over-ocean, since astronomers ...

Another option, as University of Cambridge astronomer Nikku Madhusudhan recently proposed, is that the planet is a “hycean world.” That term means hydrogen-over-ocean, since astronomers ...