A large 1,870ft long asteroid moving at a whopping 11,000mph will come within 3.1 million miles of the Earth tonight, according to NASA. Despite being nearly 12 times further out than the Moon, the asteroid is classed as a near Earth object by astronomers and is tracked by the space agency. The asteroid, dubbed 163348 (2002 NN4), will make its closest approach to Earth at 04:20 BST - passing within ...