Neil Armstrong took his historic “one small step” on the Moon in 1969. And just three years later, the last Apollo astronauts left our celestial neighbour. Since then, hundreds of astronauts have been launched into space but mainly to the Earth-orbiting International Space Station. None has, in fact, ventured more than a few hundred kilometres from Earth. The US-led Artemis programme, however, aims to return humans to the Moon this decade – with Artemis 1 on its way back to Earth as part of its first test flight, going around the Moon.