UFOs are not an exclusively modern phenomenon - people have been seeing objects in the sky for thousands of years.
Researchers outline the potential dangers posed by ancient pathogens being unleashed on an unsuspecting world.
The ancient text constitutes a 'hidden chapter' of the Bible that had been concealed beneath other layers of text.
Scientists have been studying an incredibly well-preserved bear that was found in the Siberian permafrost.
The world's night sky has doubled in artificial brightness over the last 10 years - but there may be a solution.
The find, which dates back to 2,300 B.C., was made at the site of the ancient necropolis of Saqqara near Cairo.
Archaeologists discovered the enigmatic hand print during excavation work of the city's historic fortifications.
Here we take a look back at the most popular historical mysteries and discoveries from the last twelve months.
Thousands of mysterious ancient stones depicting images of reindeer can be found dotted across the landscape.
Dating back one million years, the remarkably intact skull has been hailed as an important find by palaeoanthropologists.
NASA's latest Mars rover has made a discovery that could point to the presence of life on Mars in the distant past.
Archaeologists have made a number of intriguing discoveries in the sewers beneath the ancient gladiatorial arena.
The find seems to prove the existence of a long-rumored ancient indigenous tribe that lived thousands of years ago.
Carl Sagan once wrote about the possibility that ancient Sumer was visited by benign extraterrestrial beings.
A plant once known as silphion may still be around today despite disappearing 2,000 years ago.
Archaeologists believe that the mysterious structure was built around 7,000 years ago.
Recent research has cast new light on how the ancient Egyptians might have constructed the pyramids of Giza.
The mystery of an unknown god referenced in inscriptions from the ancient city of Palmyra has finally been solved.
A new study has suggested that evidence of ancient Martian life may only exist two meters beneath the surface.
A controversial new book claims that the hobbit-like Homo floresiensis may not have actually gone extinct.