Scientists discovered that this piranha-like fish had been masquerading as another species for years.
The long-running enigma of the mystery monoliths has entered a new chapter this week.
A shadowy figure has been blamed for setting off the siren of a Red Cross ambulance in Costa Rica.
The contractor and two other witnesses encountered a strange barbell-shaped object over the Canadian wilderness.
A strange object spotted over Iran has been captured on camera from multiple different angles.
The alleged Bigfoot prints appeared to have been left by someone or something that wasn't wearing any shoes.
A huge search and rescue effort is currently underway to locate Michael Mosley who disappeared four days ago.
The controversial UFO researcher has revealed that three more alleged alien bodies have been discovered.
Crowds of Nessie hunters tried their luck recently as the record-breaking Loch Ness Monster hunt got underway.
Boeing's long-troubled alternative to the SpaceX Crew Dragon has made it off the launchpad with two astronauts on board.
Air Force technicians who studied captured technology at Area 52 are now suffering from health complications.
An unknown object was spotted in a very brief clip recorded during the Memorial Day weekend activities.
Luring inquisitive extraterrestrials to our planet using nuclear radiation seems like a bit of a shot in the dark.
As if supermassive black holes weren't scary enough already, their rotational speed is absolutely mind-blowing.
Staff Sergeant Mario Woods had a close encounter with something he could not explain back in 1977.
Scientists have discovered a long-lost branch of the Nile that was the key to the construction of the pyramids.
The curious inscription was discovered quite by accident underneath a stone slab in a homeowner's garden patio.
The remarkable spectacle, known as the CG 4 cometary globule, is situated 1,300 light years from Earth.
NASA is currently funding a revolutionary new propulsion system that could make it much easier to travel to Mars.
A zebra is currently on the loose somewhere in the Cascade Mountains and nobody has been able to catch it.