Moon created by a 'dust doughnut' after Earth collided with baby planet
THE Moon was formed after early Earth collided with a baby planet, creating a "dust doughnut" which spat out the lunar satellite, scientists have suggested.
Up until now, experts thought the Moon formed as a result of a glancing blow between the early Earth and a Mars-size body, commonly called Theia. However, experts at Harvard University and the Universities of Bristol and California now think that the chances of that having happened are too slim to be plausible.
Instead, they have...