Extraterrestrial Life

Seven Rasmussen, an astrobiologist and author of the new book Cloudy with a Chance of Starships, gives readers a tour of the astonishing science behind modern searches for alien life

According to a new poll, more Americans also think they have seen a UFO now than they did in the past 53 years

Claiming an exoplanet to be “Earth-like” is a trend that needs to bite the dust

A groundbreaking study hints at a hazy boundary between “life” and “non-life,” as well as two distinct origins of biology on Earth

This new cache of material includes footage of a U.S. military plane’s infrared display recorded during an exercise over the Gulf of Oman in 2021

In searches for past and present Martian life, some scientists say we’ve been too cautious to see what’s right in front of us

Erythrulose—a sugar found in raspberries—is also prevalent in a giant molecular cloud close to our galaxy’s core, scientists have discovered

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence community, as well as to publish its findings in peer-reviewed journals

The new movie Disclosure Day is all about a big alien secret. But SETI researchers behind the updated postdetection protocol say they aren’t in the business of secrets

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