Source: China – South China Morning PostUp to a million asteroids could be on course for the Earth over the next century, according to a new study by Chinese astronomers.While the risk of collision is low and most of the asteroids are less than 100 metres (328 feet) across – small compared with the one that wiped out the dinosaurs – each one has more kinetic energy than an atomic bomb, and we know little about them.The small size and large number made these short-term hazardous asteroids (SHA) extremely difficult to track, said…Read More