Final preparations are underway for NASA’s Artemis II mission, the first crewed mission around the Moon for more than 50 years. Four astronauts, three men and one woman, will spend 10 days aboard the Orion spacecraft, going further into space than any other humans as they orbit the Moon and return to Earth.

Issues caused by a fuel leak while testing the Space Launch System rocket used for the mission meant launch windows in February and March were missed. Now NASA is targeting early April for launch.

The mission is the next step of the Artemis programme, which plans to land astronauts back to the Moon by 2028. China has its own programme targeting a full crewed mission to the lunar surface by 2030.

In this episode of The Conversation Weekly podcast we speak to Scott Pace, director of the Space Policy Institute at George Washington University about why NASA is sending people back round the Moon. Pace worked in space policy for the George W. Bush Administration, followed by a stint at NASA before his appointment as the executive secretary of the National Space Council during the first Trump administration, where he worked on the launch of the Artemis programme.

No human has set foot on the Moon since Gene Cernan climbed back aboard Apollo 17 in 1972. Pace says that once the Americans had beaten the Russians to the Moon “the geopolitical reason for continuing those missions really wasn’t there”.

Today, Pace believes the “geopolitical purpose for being on the Moon is to be there a lot”. He compares the Moon to Antarctica, arguing that the US and its allies have influence over Antarctica in part because they put 3,000 people on the ice every summer. “Rules are made by people who show up,” he says. It matters to him if China beats the US back to the Moon, “if China drives all the standards and the operating norms”.

For Pace, this means it’s important to up the flight rate to the lunar surface by building capacity to send more than one crewed mission a year. He thinks Artemis’s partnerships with commercial space partners will be crucial to achieving this.

“What we’re seeing now with Artemis is NASA and industry learning how to fly to the Moon, and then making a decision about what will be a sustainable future for doing this,” says Pace. “That is a current debate that will shape what happens after Artemis II.”

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