Scientists have discovered what they believe to be the strongest signature yet of alien life on a distant planet 120 light ...

A 2014 satellite image captured a rare glimpse of a massive, eerily circular ring of clouds that formed slap-bang in the ...

Hycean worlds, which are a possible kind of exoplanet with deep oceans surrounded by a thick envelope of hydrogen, could ...

showing a world without oceans. They cover about 70 percent of the surface, so the change is really impressive. The NASA ...

A photo of the earth and its oceans taken from space. The photo has been changed so we can see all of the earth’s surface in one picture. The Pacific Ocean is the world’s largest ocean.