Officials think part of a house sized asteroid that was predicted to skirt past our planet could be behind a mysterious explosion in central America. At the time of closest approach, the asteroid was predicted to be about one-tenth the distance from the centre of our planet to the moon – that’s about 25,000 miles (40,000 kilometres). Experts at US space agency Nasa said that the 60ft (20 metre) asteroid – designated 2014 RC – would safely pass us by during the weekend just passed. Meteorite hits…