Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.

Scientists have identified new clues that could help astronomers spot one of the most famous hypothetical alien ...

Night Sky This Week. Discover this week's must-see night sky events, moon phases, and stunning astrophotos. Sign up for our ...

An international team of astronomers reports the discovery of a new exoplanet orbiting a sunlike star as part of the Next ...

Mick West, a UFO investigator, suggests using modern tools for analysing UAP and suspected alien sightings, and ruling out ...

Turns out the Nixon–Jackie Gleason alien legend is far from the only Hollywood close encounter.

Steven Spielberg once again made a movie that focuses on aliens coming to Earth, so it's probably worth watching some other ...

Get the latest federal technology news delivered to your inbox. You might think this column is about UFOs and the Pentagon's ...

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should ...

NASA’s Viking 1 lander set down in the Chryse Planitia region of Mars. Its identical twin, Viking 2, followed on Sept. 3 of ...

WASP-121 b is an ultra-hot gas giant where supersonic winds reshape its atmosphere, and molten iron rains from the sky. Its ...