If ancient alien explorers ever traipsed through Earth's cosmic neighborhood, could it be possible they left behind some interstellar litter on the moon?

A team of researchers argues that the Moon could have been collecting microscopic fragments of alien technology for billions ...

Microscopic bits of alien tech on the moon? As scientists searched for intelligent extraterrestrial life — i.e., aliens — they’ve focused on a short list of standard possibilities. In other words, ...

Most of our experience with the Search for Extraterrestrial Intelligence (SETI) has focused on capturing radio signals that ...

Diggers unearth two giant bones and mysterious metal object that was created before humans even existed. See more in this ...