DID YOU KNOW? Queen guitarist and astronomer Brian May helped NASA identify a suitable landing spot for OSIRIS-REx
It’s easy to take water for granted on Earth. It surrounds us all the
time – in the sea, in rivers and streams, in rain, in clouds even when it’s not raining and in frozen form as snow and ice in winter. But where did all this water come from? In its earliest days, Earth was extremely hot – maybe as high as 2,000 degrees Celsius – so there couldn’t have been any liquid water on the surface at that time. In fact, there are several scientific theories as to how our planet got its water.