|
Water is essential for extended lunar and Mars expeditions, whether astronauts drink it, grow plants with it, or make rocket propellant from it. But water is also heavy and expensive to bring from Earth. The good news is that in the past decade or so, scientists learned that water is more abundant in our solar system than previously thought, and we're sending a water-mapping rover there to learn more. For instance, there's the potential for hundreds of millions of tons of ice in the shadows of our Moon's South Pole. But that water is unlike anything we’ve ever had to process on Earth.
|