NASA has "lost" a large asteroid that is expected to whistle past the planet tomorrow and could even hit Earth – and the terrifying event is being broadcast live. Due to ongoing uncertainty over the location of the space rock called 2013 TX68, astronomers are holding a special live broadcast to coincide with the event and to try to pin it down. The "Near Earth Asteroid", discovered in 2013, is on such an unknown path, that NASA originally thought it would make it's close approach to Earth on March 5. There is still a chance it may not get here until Tuesday, March 8 or Wednesday, March 9. Experts are so uncertain about its path they say the 100 ft asteroid may pass as close as 11,000 miles, or as far as five or more million miles. There are also fears it could strike us, flying into Earth as early as September 2017. A spokesman from Slooh telescope online channel said: "There is a 1 in 250m chance it will hit Earth on September 28, 2017. Or is it 1 in 3? The facts keep changing because