Earth could have lost anywhere between ten and 60 per cent of its atmosphere in the collision that is thought to have formed the Moon. New research led by Durham University, UK, shows how the extent ...

The question 'how was the moon formed?' has intrigued astronomers for many years. In recent years, the giant impact theory, which claims that a planet called Theia, which was about the same size as ...

The moon is thought to be the aftermath of a giant impact. According to a new theory, there were two giant impacts in a row, separated by about one million years, involving a Mars-sized 'Theia' and ...