It took an hour to get the EVA team prepped and out the airlock door for Crew 28’s first exploratory mission into the Martian landscape. As they exited, Gregorio narrated the whole process into the HabCom radio, his voice rising with excitement. “They are opening the hatch,” his voice crackled. “And … EVA No. 1 … of the Crew 28 … is a go! Over.”