Aliens exist – they just haven't visited Earth, a NASA veteran has claimed. Dr Gentry Lee has worked at the US space agency since 1968, when he first got involved with the Viking mission to Mars. He ...

As Maryland’s only show cave open to the public, Crystal Grottoes Caverns offers something you literally cannot experience ...

Airbnb has an “OMG” category filled with the strangest homes on the planet — and this trip put them to the test. From sleeping inside a rotating crane in Amsterdam to recreating an alien landing in a ...

Some people thought he was confirming aliens exist. But he later clarified on Instagram that during his time in office, he ...

Far beneath the ocean’s surface, where sunlight never reaches and temperatures soar near underwater volcanoes, life still ...

The Turquoise Pool is one of Mystery Cave’s most photographed features, and for good reason. This body of water is so clear ...

I could be the best pathologist on planet earth—the undisputed Sherlock Holmes of medical science, even—and I still wouldn’t have the slightest clue what the cause of death is for this particular ...

If life exists elsewhere in the universe, researchers at the University of Washington are finding the clues on Earth to help ...

We've tried this intimate space thriller for the first time, with good graphics, a very personal story and a mystery to solve.

The reality is more nuanced than the viral claim, yet the answer leans more toward yes than no.

The 2000s gave us some of the best sci-fi movies of all time. We've picked the top of the crop and ranked them too. Did your ...

The odds are that life is out there – but rather than little green men, it may look more like hydrothermal vent tubeworms ...