NASA is searching for the next four-person crew to participate in a one-year program at Johnson Space Center in Houston, simulating life and conditions on the planet Mars. The mission will be the second of three year-long Mars surface simulations called Crew Health and Performance Exploration Analog, or CHAPEA, and is expected to kick off in the Spring of 2025. The first four-person crew was locked into the habitat, called the Mars Dune Alpha, in June 2023, and is more than half way through their mission. The inaugural crew consists of Commander Kelly Haston, a research scientist with experience in stem cell-based projects; flight engineer Ross Brockwell, a structural engineer and public works administrator; medical officer Nathan Jones; and science officer Anca Selariu. A four-person crew entered a Mars simulator in June 2023, where they will live for the next 378 days.