The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

A new SETI study argues that turbulent space weather around distant stars can smear out ultra‑narrow alien radio signals, ...

The short answer is that there’s nothing to disclose. But that doesn’t mean we won’t make contact with extraterrestrial life ...

The Great Filter theory suggests advanced civilisations may self-destruct before contacting others, explaining the universe's ...

Planet Earth could be giving out its own signals, which could in turn be detected by distant astronomers on an alien planet ...

The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

Ten days after that interview with the president, his then–special envoy for Latin America, Mauricio Claver-Carone, was ...