The US space agency Nasa has named the four astronauts who will take humanity back to the Moon, after a 50-year gap.

Christina Koch will become the first woman astronaut ever assigned to a lunar mission, while Victor Glover will be the first black astronaut on one.

The three US citizens and one Canadian were presented to the public in a ceremony in Houston, Texas.

They will now begin a period of intense training to get themselves ready.

In selecting a woman and a person of colour, Nasa is keeping its promise to bring greater diversity to its exploration efforts. All the previous crewed missions to the Moon were made by white men.

They will join Reid Wiseman and Jeremy Hansen to fly a capsule around the Moon late next year or early in 2025.

The astronauts won’t land on the Moon, but their mission will pave the way for a touchdown by a subsequent crew.

Reid Wiseman (47): A US Navy pilot who served for a time as the head of Nasa’s astronaut office. He’s flown one previous space mission, to the International Space station in 2015.

Victor Glover (46): A US Navy test pilot. He joined Nasa in 2013 and made his first spaceflight in 2020. He was the first African American to stay on the space station for an extended period of six months.

Christina Koch (44): An electrical engineer. She holds the record for longest continuous time in space by a woman, of 328 days. With Nasa astronaut Jessica Meir she participated in the first all-female spacewalk in October 2019.

Jeremy Hansen (47): Before joining the Canadian Space Agency, he was a fighter pilot with the Royal Canadian Air Force. He has yet to fly in space.

“The Artemis-2 crew represents thousands of people working tirelessly to bring us to the stars. This is their crew, this is our crew, this is humanity’s crew,” said Nasa Administrator Bill Nelson.