The hunt is on for King Arthur's famous blade... even though nobody is sure that it actually exists at all.
A new 8-part documentary series on Netflix aims to explore a multitude of famous unexplained mysteries.
It's not quite on par with Harry Potter's invisibility cloak, but it is another step in the right direction.
The object, which resembled a metallic disc, quickly zipped past the window at considerable speed.
A new investigation by multiple news outlets has linked the phenomenon to a Russian intelligence unit.
A bizarre video clip recorded at a workshop in Mexico has created quite a stir on social media this month.
The man, who intended to visit Washington state, had wanted to know if shooting Bigfoot would break the law.
Venus might not seem like a particularly hospitable place, but its atmosphere could support some forms of life.
A recent paper concerning the controversial site in Indonesia has been fully retracted by publishers.
Over 45 years ago, pilot Frederick Valentich vanished without a trace after encountering a UFO off the coast of Australia.
The actress and 'The View' moderator recently hinted that she knows something about aliens that we don't.
Something seems to be buzzing nuclear power plants in India and nobody knows what it could be.
'Demon face syndrome' is a very real, but rare, condition that causes sufferers to see demonic faces on ordinary people.
One theory suggests that everything in the universe, even the chair you are sitting on, has some level of consciousness.
A newly identified ancestor of modern day frogs has been named after Jim Henson's iconic green Muppet.
The enormous archive contains countless books, documents and files pertaining to the unexplained.
Launching a rocket takes a lot of energy, but what if it were possible to fire a spacecraft into space instead?
For the first time, footage has emerged showing the capabilities of Elon Musk's Neuralink brain-computer interface chip.
Scientists have conducted advanced tests on the brains of those afflicted with the enigmatic condition.
A former British Special Forces paratrooper claims that the UK military captured a crashed alien spacecraft in the 1980s.