From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

A stunning new NASA-backed study reveals that Ceres, a dwarf planet between Mars and Jupiter, may have had the right ingredients to support microbial alien life. With underground saltwater oceans, ...

Polling shows that nearly half of Americans now believe aliens have visited this planet—and that the number who aren't sure ...

If aliens are out there, why haven’t we heard from them? That’s the question at the center of Pop Mech’s new story, “Aliens Probably Exist—But They’re Staying Silent For a Reason, NASA Scientist ...

As the comet heads toward its closest pass by Earth, a team led by NASA astrochemist Martin Cordiner used the Atacama Large Millimeter Array (ALMA) in Chile to study the gases streaming off its ...

Decades ago, a spacecraft suggested Saturn's largest moon, Titan, had an ocean. New observations suggest that the liquid may look more like slush. When you purchase through links on our site, we may ...

A group of researchers say it's time for academia to get serious about studying UFOs. The movement, championed by the Society for UAP Studies, is wrapping up an international conference aimed at ...

Saturn's giant moon Titan may not have a vast underground ocean after all. Titan may instead hold deep layers of ice and slush more akin to Earth’s polar seas, with pockets of melted water where life ...

The comet 3I/ATLAS is taking a long holiday journey this year. It's visiting from another solar system altogether. It's the third interstellar object recorded passing through our solar system.