A metallic sphere discovered in Colombia has sparked debate about its origins, with some suggesting extraterrestrial ...

A bizarre metallic sphere discovered in Colombia has raised new questions about unidentified flying object (UFO).

The discovery of a sphere in Colombia, thought to be a UFO, highlights differing views on its possible extraterrestrial ...

But what is the science behind extraterrestrial life? Is it possible that humans will ever experience "first contact" with an ...