Our commander, representing the United States, is Emma Green. A former Navy pilot and supremely talented astronaut, she was selected to lead this prestigious crew, thereby fulfilling her lifelong dream of being on the first mission to Mars. Emma’s husband, Matt, is also a NASA employee (no pressure, teen daughter, Lex!) and was in the running for a spot on the Atlas I until he was diagnosed with cerebral-cavernous-malformation disorder, or CCM, a rare disease that can cause seizures, brain hemorrhages, strokes ― just, like, a whole bunch of awful things that you wouldn’t want to happen anywhere, let alone in space. Matt pivoted and became the chief rocket engineer for Atlas I and is extremely proud and supportive of his wife and everything she’s accomplished. He’ll be down in mission control alongside her every step of the way. But let’s be real: We’ve all seen TV shows before, and you don’t give one of your main characters a rare and possibly fatal disease and not deploy it at some point in time. Someone keep an eye on Matt, okay?