NASA have made a starling announcement saying that there is a chance that asteroid 2013 TX68 could hit Earth when it re-approaches next year. This new admission marks a dramatic change of mind about the risks posed by the asteroid when NASA said the 100ft-wide rock had ‘no possibility’ of hitting the Earth earlier in the month. If asteroid 2013 TX68 does it hit earth on September 28, 2017, it will explode in the atmosphere, unleashing the same amount of energy as a large nuclear bomb, and destroying anything beneath it. Mirror.co.uk reports: “The possibilities of collision on any of the three future flyby dates are far too small to be of any real concern,” said Paul Chodas, manager of NASA’s Center for near earth orbit studies . “I fully expect any future observations to reduce the probability even more.” Late last night, NASA published a tweet in which it claimed that Earth would be safe from this asteroid for at least the next century. However, astronomers cannot precisely predict its movements and have given it a “condition code” of eight out of a possible 10, which means they cannot accurately predict its movements. Asteroid 2013 TX68 orbit calculations refined with add’l observations; new [...]