Alien life is "definitely" monitoring Earth's airbases, according to a British ufologist and film-maker after recent footage ...

An alleged UFO sighting over Capitol Hill has again drawn attention to the rising reports of unexplained phenomena.

Slain cattle stripped of certain organs with surgical precision and found in pastures with no trace of blood or evidence have ...

Claims of UFOs at nuclear sites spark debate as ex US military official suggests aliens send a message about nuclear weapons.

Scientists have found microorganisms crawling over a sample retrieved from the 200 million-mile-distant asteroid Ryugu. But ...

Since the first modern SETI (Search for ExtraTerrestrial Intelligence) studies tried to detect alien transmissions in the ...

A congressional hearing this month calling for greater government transparency on UFOs is one of the latest events spurring ...

Engineers at NASA's Jet Propulsion Laboratory recently tested prototypes of miniature, self-propelled robots designed to ...

From Roswell to the USS Nimitz, sightings and evidence abound. How do we investigate UFO reports—and are they real in the ...

As the universe expands (as it does in a dark matter-dominated universe) the distance between us and all other stars ...

Scientists have found what seems to be the oldest direct evidence of hot water flowing on Mars during its ancient past. The ...