One of the earliest reported UFO accounts has been unexpectedly found inside a box of junk and is now up for auction.
A spectacular and destructive event will take place this week when the upper stage of a rocket will impact on the lunar surface.
Something large and mysterious has been leaving a trail of carnage in the waters off Montauk, New York.
Our species inherited DNA from several known species of archaic human - including some we know nothing about.
The Amazon rainforest might seem like an impenetrable tangle of trees today, but in the past, it was home to millions of people.
One of the brightest and most studied stars in the night sky has seemingly been hiding a secret all along.
The search for intelligent alien signals has traditionally only focused on a relatively narrow range of frequencies.
The pilots of a Mokulele Airlines flight recently had to take evasive action after an unidentified object 'popped' out of a cloud.
Contestants are tasked with rapidly consuming the contents of a toilet bowl using a large straw.
The iconic 90s TV show has been immortalized in a new LEGO set that pays tribute to the characters and lore.
Former government employees and contractors had previously felt unable to disclose details of UAP encounters.
The asteroid Apophis - which is considered to be potentially dangerous - will make its closest approach before the decade is out.
The dangers of AI have been laid bare again this week following what has been described as an 'unprecedented incident'.
There are still some who believe that the Apollo program was a hoax and that humans have never landed on the Moon.
Just as disclosure seems to be gaining traction, the Pentagon is looking into a new way of concealing files from the public.
The primate is only the fifth new species of monkey to be discovered in Africa within the last 75 years.
Drone warfare has proven to be at the heart of the modern battlefield, but what if it were possible to build a drone that cannot be seen?
Astronomers have identified a nearby rocky extrasolar planet that has an atmosphere and lies within its star's habitable zone.
The largest great white shark ever discovered in the Atlantic has been spotted again after not being seen for several months.
The groundbreaking sale saw the fossil remains of the tyrant lizard - named 'Gus' - change hands for millions of dollars.