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 ...

A well-known conspiracy theory (also seen in The X-Files) attests that aliens are in communication with the U.S. government, providing knowledge and advanced weaponry, or engaged in secret wars with ...

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 – ...