Here’s how we could mine the moon for rocket fuel

The moon is a treasure trove of valuable resources. Gold, platinum, and many rare earth metals await extraction to be used in next-generation electronics. Non-radioactive helium-3 could one day power nuclear fusion reactors. But there’s one resource in particular that has excited scientists, rocket engineers, space agency officials, industry entrepreneurs—virtually anyone with a vested interest in making spaceflight to distant worlds more affordable. It’s water. 

Why? If you split water into hydrogen and oxygen, and then liquefy those constituents, you have rocket fuel. If you can stop at the moon’s orbit or a lunar base to refuel, you no longer need