An unknown object was spotted in a very brief clip recorded during the Memorial Day weekend activities.
For years, a radio station broadcasting continuously out of Russia has managed to defy explanation.
China's answer to the X-37B is doing something in Earth's orbit and nobody is quite sure what that might be.
The peculiar object had been found along a remote forest track recently in Haywood County, North Carolina.
As strange as it may sound, there have been several cases of alleged 'death by UFO' over the decades.
The SpaceX and Tesla entrepreneur made the tongue-in-cheek comment at the recent Viva Tech event.
The wreck of the San Jose, a 300-year-old Spanish galleon, is thought to be filled with gold and jewels.
The next-generation aircraft looks like something you are more likely to find in a science fiction movie.
Efforts to determine what was inscribed upon the stone, which was found in a man's patio, had proven challenging.
The peculiar object was found quite by accident along a trail in Haywood County, North Carolina.
Luring inquisitive extraterrestrials to our planet using nuclear radiation seems like a bit of a shot in the dark.
This alien-like fish, which typically lives 3,000ft beneath the surface of the ocean, is a very unusual find.
As if supermassive black holes weren't scary enough already, their rotational speed is absolutely mind-blowing.
The phenomenon, which was visible over the ocean, occurs under very specific atmospheric conditions.
For years, anthropologists struggled to determine which human ancestor the skull - along with two others - belonged to.
Staff Sergeant Mario Woods had a close encounter with something he could not explain back in 1977.
A lot of strange tactics were thought up during the Second World War, but this is perhaps one of the strangest of them all.
The new evidence would seem to put to bed the notion that claims of big cats roaming the British Isles are false.
Scientists have discovered a long-lost branch of the Nile that was the key to the construction of the pyramids.
Could warp drive one day enable long distance space travel ? One group of physicists certainly seems to think so.