A viral alien base on the Moon claim rests on a March 2026 preprint that has not been peer reviewed or independently confirmed. The paper says high-speed telescope footage captured more than 20 ...

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

Most of our experience with the Search for Extraterrestrial Intelligence (SETI) has focused on capturing radio signals that alien species have sent out, whether intentionally or unintentionally. That ...