Several of the missions involved extravehicular activity (EVA), spacewalks or moonwalks outside of the spacecraft. The MBS also supports astronauts during extravehicular activities. Collins received his first choice&colon; pressure suits and extravehicular activities (EVAs, also known as spacewalks). The Apollo lunar EVA suit was called the Extravehicular Mobility Unit (EMU). SAFER is worn by every ISS crewmember using an Extravehicular Mobility Unit. Another hatch, facing to payload bay, was to support extravehicular activity from the orbiter. Players can control in-game astronauts, known as Kerbals, who can perform extravehicular activities (EVA). Following STS-103, he served as Chief of the Extravehicular Activity Branch in the Astronaut Office. During these exercises, they practiced for the planned extravehicular activities (EVAs). Throughout EVA 1, Commander Ken Ham oversaw the extravehicular activities. The extravehicular activity (EVA) lasted 6 hours and 39 minutes. NASA also had concerns about extravehicular activity (EVA). In November 2002, Anderson completed training in the Extravehicular Activity (EVA) Skills program. The descent stage's primary job was to support a powered landing and surface extravehicular activity. SPARTAN-204 was also used for extravehicular activity (EVA) near end of the flight.