NASA's successful Artemis I mission paves the way for what could be the most exciting space moment in decades: landing people back on the Moon for the first time in more than 50 years.Catch up quick: NASA's Orion spacecraft arrived back on Earth Sunday, splashing down in the Pacific Ocean after a 25.5-day long, uncrewed trip in space that culminated in orbiting the Moon and returning back to Earth under its parachutes.- Artemis I was designed to stress test Orion and work out all the kinks before putting people on board for the space system's next flight, planned for 2024.- The Space Launch System rocket also worked well during its inaugural flight with Orion in November, NASA said then, despite multiple delays and even weathering a hurricane on the launch pad.- SpaceX hasn't yet flown its lunar lander based on its Starship space system, and NASA is still awaiting spacesuits also being produced under contract with private companies."