A stunned photographer has captured what appears to be a ghostly figure on camera - with even paranormal investigators struggling to explain his spooky image. The shot shows a transparent figure dressed in modern clothing gazing out over the Thames near Westminster Bridge. Professional snapper Jules Annan took the shots on New Year's Eve but only noticed the ghostly apparition when he got home. A ghostly apparition, a trick of the camera or a clever piece of photoshop work? You decide...
This Hubble image shows star RS Puppis shrouded by thick, dark clouds of dust enabling a phenomenon known as a light echo which NASA has compared to a cosmic holiday wreath.
A member of China's national pole dance team performs at a park after the city's first snow this winter in Tianjin December 18, 2013.
Two extreme sports professionals take a leap of faith as they plunge headfirst down a 75ft waterfall. White water kayaker Ben Marr and skier Rory Bushfield executed the death-defying stunt at the Mamquam Falls in Squamish, Canada. Bushfield performed a "gainer" - a backwards somersault while still moving forward - from the top of the falls while Marr descended it in his kayak. The stunt was not without its dangers - only a few days before their descent, a young Vancouver man drowned after leaping into the waterfall
A diver makes his way into Devils Ear at the Ginnie Springs, High Springs, Florida, where the Santa Fe River water mixes with clear spring water.
A child plays in the snow in the garden of the National Cathedral in Washington, U.S., December 10, 2013.