Most stars in the cosmos are small, cool red dwarfs, yet the only intelligent life we know orbits a relatively rare yellow dwarf under a blue sky. That mismatch is at the heart of the “red sky paradox ...

The Pentagon has released another batch of ‘UFO Files’ with footage of unknown objects in the sky—here are the most common alien theories, explained. This voice experience is generated by AI. Learn ...

Holidaymakers have one major thing in common with scientists who are on the hunt for alien life: their plans are often thwarted by clouds. The clouds on alien worlds are such a long-standing issue – ...

A decade ago, we spotted an exoplanet that could be the most habitable world yet discovered. Now we're about to find out if it has the last crucial ingredient it needs to support life SEVEN ...