NASA hopes to put humans back on the moon by 2024, starting with an orbiting space station dubbed Lunar Gateway. And the space agency is already showing signs of prepping for the upcoming missions. Recently, the organization announced it will partner with Advance Space, an aerospace company from Colorado, to develop a small CubeSat mission to answer questions before the upcoming missions.The CubeSat, named CAPSTONE, will be a tiny satellite with the same orbital path that Gateway could eventually take. This path will rotate together with the moon as it orbits Earth, brining it as close to the moon’s surface as 1,000 miles. CAPSTONE could launch as early as December 2020, and with it, could demonstrate how to enter and operate in this lunar orbit before the much larger spacecraft for Gateway are ready.