The UK has signed up to the principles that will guide the American-led return to the Moon this decade.
The US plans to put the first woman and the next man on the lunar surface in 2024, in a project called Artemis.
This would mirror the Apollo missions of the 1960s/70s but with the difference this time that astronauts would set up a permanent presence.
The so-called Artemis Accords are intended as a framework for best practice in space and on the Moon.
They cover areas such as the utilisation of resources, mining water-ice for drinking water and to make rocket fuel; common standards, open data, safe operations, and providing emergency assistance.
America, which devised the accords, has signed them, followed by the UK, Japan, Australia, Canada, Italy, Luxembourg and UAE. More countries are certain