Extraterrestrial Life

Hints of high-pressure chemistry within a rare meteorite suggest this fallen space rock comes from a planet gone wrong in the solar system’s early history

Planets might exist in the least likely place you’d imagine—around the outskirts of supermassive black holes

Even though astronomers didn’t detect alien tech signals from a rare interstellar visitor, the results are worthwhile, they say

The Pentagon has started releasing files related to unidentified anomalous phenomena (UAP), also called UFOs. Here are the images released so far

The Pentagon’s first UFO file release includes photographs, videos and documents gathered as part of an effort that spans several governmental offices and agencies, including the FBI, the White House and NASA

An almost unkillable fungal strain isolated from NASA’s ultrasterile clean rooms hints at “critical gaps” in interplanetary quarantine

The Kardashev scale is an interesting but flawed gauge of a civilization’s growth

In the Oscar-nominated film Bugonia, Emma Stone’s character is accused of being an alien. But would we know extraterrestrial life if we saw it on Earth?

New insights into a tiny, tough microbe have huge implications for the search for life beyond Earth

On Thursday the U.S. president ordered the release of federal files related to UFOs and aliens, although no evidence of extraterrestrials visiting Earth is known to exist

New laboratory studies could shed light on a rock containing potential signs of alien life that’s stranded on Mars

New experiments show how RNA might form not just on Earth but on other rocky planets, too