A helium balloon has descended from the ceiling in my home and begun wandering from room to room like an alien visitor from another planet. And it got me speculating about exotic life that might exist ...

In 1947, scraps of rubber and metal found in Roswell, New Mexico arguably began the hunt for UFOs and alien life on our planet. That collection of debris was officially from a downed weather balloon – ...

Sneak a sidelong glance at the person next to you. They might look normal enough, but if you don’t believe in intelligent life in the great blue yonder, then there’s a good chance they are the two out ...