Analysis of lunar rocks brought by the Apollo mission revealed hydrogen in the composition. This discovery suggests that astronauts in the future could use water from the moon to sustain life and rocket fuel.

Hydrogen was detected in lunar soil sample 79221. It is believed that it originated during the collisions of comets with the moon or under the influence of the Sun.

According to one NASA estimate, launching a water bottle to the moon would cost thousands of dollars. Thus, to cut costs, ice on the moon can be used on-site as water for astronauts. And it can also be broken down into components (hydrogen and oxygen) to be used as rocket fuel for travel between the Moon and Earth. Perhaps it could also be used to take humans to Mars.

In 2020, data from the SOFIA telescope showed that water on the Moon can be sprayed as ice over its entire surface.