NASA has begun to choose equipment for the Gateway Station. This station will be a fixture, orbiting the Moon. Astronauts can deploy to and from Gateway to the Moon. These first sets of instruments selected for Gateway will observe space weather and monitor the Sun’s radiation environment. Other instruments will be choosen within the next few years. The Canadian Space Agency, ESA, and JAXA will also take part. One of the most important funcntions of Gatelway is prepare and rehearse for flights to Mars.