Even in the best of circumstances, however, talk of a biosignature is an invitation to scientists to think of alternative ...

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

Dimethyl sulfide is in the news after NASA’s James Webb Space Telescope may have detected relatively high levels of it in the ...

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

Chemical signatures detected on the planet K2-18b points to the strongest evidence of life outside the solar system, ...

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

In a potential landmark discovery, scientists using the James Webb Space Telescope have obtained what they call the strongest ...

Astronomers have a lot of thoughts about the latest paper claiming we’ve found the strongest hints of alien life yet on the distant planet K2 18b.

With the James Webb Space Telescope, astronomers say they are working to confirm potential evidence of life on a distant ...

Slushy hailstones of ammonia and water were part of a bizarre theory to explain the planet's poorly mixed atmosphere. These mushballs seem to be real, say UC Berkeley scientists.

Using the James Webb Space Telescope, researchers have found signs of what could finally settle the age-old question: Are we ...

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