But now the thinking is

these pockets of water, some no bigger than a penny, could be much more common on accessible than we previously thought.

Tens of billions of potential ice reservoirs on the moon.

And so this expands greatly the potential reservoirs of water that could be accessed for both scientific and exploration purposes.

Scientists say that one day humans could be drinking this water, using it to grow food or splitting its molecules to make rocket fuel to help us travel deeper into space.

The moon is a lot smaller than here on Earth.

Gravity is a lot less so.

It's actually more economical for us to launch missions from the surface of the moon than it would be from Earth, and this could be happening before the end of the century.

But what does the surface of the moon look like right now?

Mountains, valleys, storm and volcanoes and planes of solidified lava.

You can't step on the moon without treading on a crater.

That's because it's constantly being bombarded by things like asteroids and meteoroids and comets on.

They've been hitting the moon for billions of years because the moon has no atmosphere.

Once a mark is made, almost nothing can remove it.

And then let's not forget about all the things humans have left behind.

Over the years we are explorers were looking to go live on the moon and on do a lot of science there that we couldn't achieve on the short emissions of, say, the Apollo era on.

Then hopefully you use the moon, a za launchpad, to take us onwards deeper into the solar system to Samar's.