Before this decade is over, NASA will send astronauts to the moon for the first time since the Apollo Era. As part of the Artemis Program, NASA also plans to establish the infrastructure that will allow for a "sustained program of lunar exploration." A key part of this is the Lunar Gateway, an orbiting space station that will facilitate regular trips to and from the lunar surface. In addition to being a docking point for ships going to and from Earth, the station will also allow for long-duration missions to Mars.