A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar ...

One possible solution to the Fermi Paradox, the big question of where all the aliens are, is that some ancient galactic disaster wiped out extraterrestrial civilizations, and we're among the first to ...

Discover the top 10 highest-rated games on Metacritic that have slipped through the cracks of gaming history. Can you guess ...