These out-of-place artifacts, or OOPArts, are surprising for their place and time — but there's an explanation behind each ...

The search for extraterrestrial life, a long-standing pursuit dating back to antiquity, has shifted from focusing solely on direct observation to incorporating methods like spectroscopic analysis of ...

There are tens of billions of Sun-like stars in the Milky Way, an immense tally that encourages the possibility that extraterrestrial life peppers the universe. Finding evidence for aliens - even ...