Aldrin, 96, the second person to walk on the moon, said during a technical crew defriefing one week after the Apollo 11 crew ...

The Pentagon has released its first batch of classified UFO documents, including a mysterious NASA photo from the Moon's ...

Luna's cryptic posts follow months of heightened interest in the topic of UFOs, and what might be revealed.

The Pentagon says the website has U.S. government photos, videos, and documents that ‘are in one place – no clearance ...

The U.S. government has released a slew of never-before-seen files about UFOs.

The Department of War released dozens of files related to UFO sightings. Here are 5 most intriguing ones.

The Trump administration has released more than 160 previously classified UFO and UAP files in what officials are calling a ...

Add Yahoo as a preferred source to see more of our stories on Google. Scientists have long believed Saturn’s moon Titan hid a massive underground ocean, but new research suggests something even ...

One of Saturn’s small, white moons has the perfect conditions for life in its icy crust-covered ocean. The vapor or gas contains hydrogen, one of the essential components of life. "A form of chemical ...

The photos show an eclipse and a distant Earth disappearing behind the moon, a disorienting and surreal perspective. Here's what to know.

From the first photographer star to the discovery of alien worlds, these night sky targets mark some of astronomy's greatest ...