the habitat and workload are designed to mimic a real mission as closely as possible. and nasa's scientists throw in lots of elements to try and ensure that the volunteers forget that they're actually part of an experiment. if mcc talks to the crew, they ask a question, it takes five minutes to get to the crew, and then they answer, it takes five minutes to get back. so a ten—minute round—trip for a question and answer. so the whole idea of creating a mission scenario, you're going to phobos and you're, you know, you're going to do an eva, you're going to pilot a small spacecraft to the surface. you know, all that keeps them really excited and engaged