K2-18b, an exoplanet 120 light-years away, may be the best hope to confirm that life exists beyond Earth. Here's what to know ...

Astronomers have detected molecules on exoplanet K2-18b that may have been produced by simple organisms, claiming it's the ...

It would take 120 years to travel to planet K2-18b at the speed of light. Here's how we know what could lie there.

The discovery was made on a massive exoplanet known as K2-18b that for years has captivated scientists searching for life ...

Fresh data from the James Webb Space Telescope provide more evidence for what some consider a biosignature — but debate is ...

Astronomers plan to conduct more research after finding possible signs of alien life on a distant exoplanet known as K2-18b.

A chemical called dimethyl sulfide popped up in an analysis of exoplanet K2-18b’s atmosphere. On Earth, it’s only made by ...

A team of astronomers led by the University of Cambridge say they are closer to a statistically significant scientific ...

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

On a faraway planet, the James Webb Space Telescope has picked up signs of molecules that, on Earth, are produced only by ...

Astronomers have made a detection suggesting biosignatures, or signs of biological activity, on an exoplanet located 124 ...

Further studies are needed to determine whether K2-18b, which orbits a star 120 light-years away, is inhabited, or even ...