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

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.

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

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

Beyond that, in the decades to come, we might be able to see the colours of an exoplanet’s surface, and determine if plant life might be present there. And then we can search for changes in a planet’s ...

Documents might help scientists shed light on unexplained phenomena and government secrets, experts said.

Planet K2-18b, an apparent water world 124 light years away, has been seen as a promising location in the search for aliens, ...

For decades, scientists have searched the skies for signs of extraterrestrial technology. A study from EPFL asks a sharp question: if alien signals have already reached Earth without us noticing, what ...

Solar storms around distant stars may be erasing alien radio signals before we ever hear them In A Nutshell Stellar winds and solar storms around distant stars may be distorting alien radio signals ...

Donald Trump’s pledge to release official files relating to UFOs has intrigued conspiracy theorists who suspect the US government has hidden evidence of alien activity on Earth.

Some people thought he was confirming aliens exist. But he later clarified on Instagram that during his time in office, he ...