Recent discovery by researchers suggests in fact water could be all over the lunar surface, hiding in plain sight. Mihesh Anand is a Professor of Planetary Science and Exploration at the Open University. He recently published a study about potentially finding billions of tons of water locked up on the moon. We can't get very far without it. That's why if humans are to venture further into space, we're going to need to source it off-planet. And the first stop, our nearest neighbour, of course.