NASA's Asteroid Redirect Mission has had its funding cut. Here's why politicians should think again.
A six degree change in the moon's tilt could help us understand the origin of water in the inner solar system, and help us mine our staellite for it, too.
Ice is everywhere in the solar system and there may even be liquid water beneath the surface of a number of planets. But could we ever get to it?
For centuries, scientists have wondered how water channels on Mars formed. Our model suggests that they were caused by water erupting from subsurface lakes on the ancient planet.