If the Milky Way ever hosted a star-faring civilization, its most durable monument may not be a beacon, a ruined spacecraft or a city-size machine. It may be dust. A team of researchers argues that ...

Scientists have discovered a crater on the moon that’s bigger than the Roman Colosseum and is the result of a powerful impact two years ago that initially went undetected. The steep-sided hole — about ...

Microscopic bits of alien tech on the moon? As scientists searched for intelligent extraterrestrial life — i.e., aliens — they’ve focused on a short list of standard possibilities. In other words, ...

Researchers combined gravity data from NASA’s GRAIL mission with magnetic measurements from Lunar Prospector and Kaguya. In ...

Enceladus is covered in ice, but that layer might hide a subsurface ocean. Researchers have long wondered if the salty body ...

A new study proposes searching the moon for remnants of ancient extraterrestrial technology. Researchers suggest the moon's surface could preserve microscopic "technosignatures" left by alien ...

Most of our experience with the Search for Extraterrestrial Intelligence (SETI) has focused on capturing radio signals that alien species have sent out, whether intentionally or unintentionally. That ...

Gemini astronauts risked their lives to prove that spacewalking was possible.

What is today’s Moon phase? As of Thursday, Sept. 17, NASA's Daily Moon Guide tracker tells us the Moon is in the Waxing Crescent phase, with 35% of its surface visible. You should be able to spot ...