The long-lived space probe has been sending back some unusual data and nobody can figure out why.
Data from the Hubble Space Telescope has highlighted a discrepancy with regard to the expansion of the cosmos.
A recently published video clip shows a huge gorilla tenderly petting a tiny groundhog at Detroit Zoo.
A picturesque lake perched high atop a mountain in Ontario, Canada has a mystery that has yet to be solved.
The first congressional UFO hearing in 50 years offered greater transparency, but no concrete evidence of aliens.
A new documentary exploring sightings of Bigfoot in a notorious area of Massachusetts is now available to watch for free.
Businessman Russ Kellett maintains that he has had close encounters with alien visitors since he was 16.
The eruption, which occurred in January, was larger than any other eruption or atomic bomb detonation in the last 100 years.
These giant 'scratches' on the surface of the Red Planet were captured on camera by ESA's Mars Express orbiter.
Two researchers have come up with a possible answer as to why we have yet to encounter intelligent aliens.
Treasure hunters have found a metal canister that could contain hundreds of millions of dollars worth of stolen valuables.
Researchers aboard the research vessel Nautilus have discovered something unusual at the bottom of the ocean.
Taken from a plane in 1971, the image shows what appears to be a metallic saucer flying through the air.
The enormous cephalopod was recently discovered washed up along the shoreline in Kommetjie.
The unorthodox primate is believed to be a cross between two other (distantly related) species.
A mind-boggling optical illusion in a tunnel in the US left one driver so perplexed that he didn't want to drive on.
According to a new study, it may be quite a long time before we're likely to hear from ET.
A theoretical new type of telescope could make it possible to obtain close-up views of extrasolar worlds.
A couple who had been visiting Loch Ness recently managed to record something unexplained moving in the water.
With its four venom-laced fangs made of copper, this is one sea creature you definitely don't want to mess with.