The newly discovered world, which is 41 light-years away, is almost exactly the same size as the Earth.
The weird world of quantum physics has become weirder still thanks to a new breakthrough by researchers in the US.
Here we take a look back at the most popular historical mysteries and discoveries from the last twelve months.
Researchers uncovered the enormous, previously unknown civilization by conducting LiDAR surveys of the region.
An aerial investigation of the Nazca Desert in South America has yielded the discovery of many more geoglyphs.
A recently discovered piece of wreckage from the doomed airliner has shed new light on the mystery.
Sporting five finger-like appendages, the 'hand' was found washed up along the shoreline on a beach in Brazil.
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 iconic predatory dinosaur may have been as much as 70% larger than fossil discoveries suggest.
The crew had been searching for a downed World War II aircraft within the infamous region of the North Atlantic.
Situated in our 'cosmic backyard', this newly discovered behemoth is ten times more massive than the Sun.
The gruesome discovery was recently made in an unassuming residential neighborhood of Darlington, County Durham.
Archaeologists have unearthed one of the most important discoveries of recent years - a huge tunnel beneath a temple in Egypt.
Scientists using ice-penetrating radar have spotted an enormous river snaking its way beneath the Antarctic ice.
The blunder, which had remained undiscovered until very recently, may never be rectified due to the painting's fragile state.
A family of ghost hunting paranormal enthusiasts recently spoke about their experiences in a televised interview.
The find seems to prove the existence of a long-rumored ancient indigenous tribe that lived thousands of years ago.
The son of heavy metal legend Ozzy Osbourne appeared on a recent morning TV interview to discuss his experiences.
A plant once known as silphion may still be around today despite disappearing 2,000 years ago.