Asteroid travelling at 11,000mph will zip past Earth at a distance of 3.1 million miles tonight 

Skyscraper-sized asteroid travelling at 11,000mph will zip past Earth at a distance of 3.1 million miles this weekend The asteroid has been called 163348 (2002 NN4) and was first spotted in 2002 It will make its closest approach to the Earth at 04:20 BST on Saturday 6 June The 1,870ft space rock is more than 400ft … Read more