This distinctive disc-shaped cloud formation was recently photographed by a worker in the Cascade Mountains.
Scientists have determined what it was that made the fiercest Viking warriors so fearless and ferocious.
New Horizons' encounter with a Kuiper belt object has turned what we know of planet formation on its head.
New details have been revealed about the Pentagon's research into exotic propulsion systems and UFOs.
The infamous event, which saw millions of sign-ups back in 2019, is set to take place again later this year.
A prominent Iranian official recently Tweeted a rather questionable photograph of Iran's new 'space suit'.
A Dutch oceanographer has suggested building two gigantic dams as a solution to rising sea levels.
A violent storm that battered the UK this week exposed this monstrous carcass on an Aberdeen beach.
A recently published viral video on YouTube shows a large hairy figure walking through the trees.
A new species of tyrannosaur that roamed the Earth 80 million years ago has been unearthed in Canada.
Astronomers have discovered the first known example of a fast radio burst that repeats in a steady cycle.
The billionnaire tech magnate is working on developing a revolutionary new type of brain-computer interface.
A freak accident has resulted in the deaths of four rare mountain gorillas in Uganda's Mgahinga National Park.
A recently uploaded video clip shows a featureless spherical object hovering motionless in the sky.
A very strange video clip recently uploaded onto Facebook shows a bird seemingly frozen in mid-air.
'The Mothman Legacy' will explore the stories behind various sightings of the enigmatic winged humanoid.
Daymond Steer has quizzed many of the United States' most prominent politicians about the phenomenon.
Scientists have warned that a long period of particularly low solar activity could lead to much colder winters.
The inhabitants of the pre-Columbian Native American city did disappear for a time, but then they came back.
A new NASA video shows a simulation of what would happen if all the world's oceans were to drain away.