UFOs, or Unidentified Flying Objects, and extraterrestrials are perennial favorites in science fiction, but to date there have been no confirmed encounters on Earth. Still, strange sights in the night sky have been attributed to UFOs or aliens over the decades, most famously in Roswell, New Mexico, where many believers claim an alien craft crashed on a farm in 1947. In 2017, the existence of a secret U.S. government program that tracked "UFO" sightings by military pilots, which shut down in 2012, was brought to light in a New York Times report.
Space.com recently talked with Breakthrough Initiatives executive director Pete Worden about a signal coming from the vicinity of Proxima Centauri, and about the search for alien life more generally.
The CIA just turned over 2,700 pages of UFO-related material to The Black Vault, a free repository of UFO records online.
From the best places to find them to what they might breathe, here are the newest clues we discovered about alien life.
If intelligent aliens visit the Earth, it would be one of the most profound events in human history.
Astronomers hunting for radio signals from alien civilizations have reportedly detected an "intriguing signal" from the direction of Proxima Centauri, the nearest star system to the sun.
A famous equation used in the search for alien life has inspired a new model that estimates the risk of COVID-19 transmission.
As humanity ramps up its search for alien life, we should keep in mind that E.T. might be hunting for us as well.
There's a rising call for "unidentified aerial phenomena" to be studied scientifically, perhaps even using satellites to be on the lookout for possible future events.
If there is indeed life on Venus, it may have come from Earth — aboard an asteroid that scooped up microbes high in our skies.
Rocket Lab's life-hunting Venus mission in 2023 will be just the beginning, if all goes according to the company's plan.
The main goals involve investigating the case for life on Venus and figuring out the best ways to hunt it down, if it is indeed there.
Russian cosmonaut Ivan Vagner spotted 'space guests' while recording video of Earth's auroras. The bright lights are most likely satellites.
The Pentagon just announced the creation of a task force to analyze and understand the "nature and origins" of UFOs. Here's what the much-hyped news means.
Rocket Lab, which gives small spacecraft dedicated rides to Earth orbit, plans to go interplanetary soon with an astrobiology mission to the second rock from the sun.
One of Arecibo's supporting cables snapped early Monday morning (Aug. 10), ripping a 100-foot-long (30 meters) gash in the giant radio dish.
A federal program for investigating UFOs was purportedly discontinued in 2012, but the Pentagon's search for UFOs never stopped. Its findings may soon be released to the public.