A rocky world orbiting within its star’s habitable zone may be surrounded by a helium-rich atmosphere, providing the ...

Scientists have seen an atmosphere around a rocky, potentially habitable planet for the first time – marking a major milestone in the search for alien life. As well as being a major discovery in ...

Decades before blockbuster CGI aliens, artist Wayne Barlowe designed an entire ecosystem for his book "Expedition" — later ...

A meteorite that crashed through the roof of a New Jersey home last year contains the chemistry of alien life, according to ...

The search for alien life has been boosted after an atmosphere was detected surrounding an Earth-like planet for the first ...

Scientists have made a historic breakthrough. They have found a planet that might be the closest to supporting life.

Researchers found this material on the meteorite, which entered Earth's atmosphere moving faster than the speed of sound.

Astronomers have revised the mass of nearby exoplanet GJ 3378 b, recasting it as a rocky super‑Earth in the habitable zone ...

The rocky exoplanet depicted here in this artist’s illustration, with a fuzzy atmosphere. (Melissa Weiss/CfA) As the famous ...

The sci-fi movie “Disclosure Day” predicts that our reaction to intelligent alien life will be chaotic. But what does the ...

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...