Private spaceflight companies will carry commercial payloads to the Moon in advance of NASA’s crewed landing slated for 2024. (Credit: NASA)

NASA wants to return humans to the Moon by 2024 under a program called Artemis. And this time, they want the stay to be of a more permanent nature. In addition to landing humans on the lunar surface, NASA wants to put a Gateway space station in orbit around the moon, to host the next generation of space experiments and to serve as a waystation between E