Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...

What if you found out that you had a long-lost relative? And what if that long-lost relative was from a different planet in ...

Add Yahoo as a preferred source to see more of our stories on Google. Tardigrades—a type of invertebrate also known as water bears—are the only animals observed to survive the intense radiation and ...

By studying Earth's toughest microbes and complex animal "speech", scientists are reshaping how we search for – and may someday talk to – alien life.

Astrophysicist Neil deGrasse Tyson critiques the humanoid depiction of aliens in Steven Spielberg’s _Disclosure Day_, praising its cast's authenticity.

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life.