NASA has announced the discovery of water on the Moon's surface.
The US space agency revealed the finding on Monday during a press conference, branding it an "exciting new discovery".
It marks a huge boost to Nasa's plans to land astronauts on the Moon again.
Two astronauts – a man and a woman – will land at the lunar south pole by 2024 under what Nasa has called its Artemis programme.
They could drink the water found at the lunar surface, or possibly use it to make rocket fuel.
A large amount of the water discovered by Nasa is caught in frigid regions on the Moon called “Cold Traps”.
Here, temperatures are thought to drop to as low as -163C (-261F), meaning water can remain there for millions or even billions of years.
Cold Traps range in size from a few metres to 18 miles across.
Two studies detailing the findings have been published in the journal Nature Astronomy.
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