Many people who don’t believe one conspiracy theory about that station—known as the High-frequency Active Auroral Research Program, or HAARP—believe another. A common misconception is that it can ...

SETI has spent decades listening for a sharp, well-defined radio signal that could indicate it was sent by distant intelligent life. Now researchers believe that space weather could distort and blur s ...

Donald Trump has ordered the release of files related to aliens, UAP, and UFOs. If previous disclosures are any indication, get ready for a letdown.

Stellar plasma can smear alien radio signals before they escape their star system, making them harder for astronomers to detect.

Some believe the Betz mystery sphere, a steel ball that a Florida family found on their property in 1974, is a piece of alien technology. Here’s the truth.

Looking for molecular evidence of life on other worlds is tricky, but a test based on the reactivity of carbon compounds ...

In 2017 astronomers detected an unusual object entering our Solar System from interstellar space. Named ‘Oumuamua, it ...

Our search for extraterrestrial life has turned up empty, perhaps because technologically advanced civilizations are doomed ...

Scientists might have just found Earth's icy, distant cousin a few hundred million light-years away. HD 137010 b is one of ...

Disclosure may not reveal alien visitors, but it will reveal something equally important: how science, measurement and ...

Analysis by The Atlantic found that two sizeable bets were placed on prediction market Kalshi in short succession this week.

America was winning the race to find Martian life. Then China jumped in. In July 2024, NASA’s Perseverance rover came across a peculiar rocky outcrop on Mars covered in strange spots. On Earth, these ...