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 of years. Their preprint on arXiv, now under peer review, lays out a ...

Spread the loveImagine, for a moment, that the answer to one of humanity’s most profound questions – ‘Are we alone?’ – isn’t ...