Explore: Extravehicular Activity

Extravehicular activity (EVA) is any activity done by an astronaut in outer space outside a spacecraft. In the absence of a breathable Earthlike atmosphere

different purposes: IVA (intravehicular activity), EVA (extravehicular activity), and IEVA (intra/extravehicular activity). IVA suits are meant to be worn inside

mobility, life support, and communications for astronauts performing extravehicular activity (EVA) in Earth orbit. Introduced in 1982, it is a two-piece semi-rigid

Space Activity Suit: An Elastic Leotard for Extravehicular Activity, the original 1968 paper (Microsoft DOC format) Development of a Space Activity Suit

is fitted around the life support backpack of the space suit (EMU or Extravehicular Mobility Unit). SAFER in no way interferes with suit mobility. The flight

27 June 2025. "Shenzhou-20 astronauts complete third series of extravehicular activities". english.www.gov.cn. Retrieved 16 August 2025. Berger, Eric (16

During Apollo 16's return flight to Earth, Mattingly performed an extravehicular activity (EVA) to retrieve film cassettes from the exterior of the spacecraft

days required for a round trip to the Moon; methods of performing extravehicular activity (EVA) without tiring; and the orbital maneuvers necessary to achieve

days, 14 hours), greatest distance from a spacecraft during an extravehicular activity of any type (7.6 kilometers or 4.7 miles), longest time on the

radiation sickness, and may even have been lethal for those engaged in extravehicular activity or on the lunar surface. Another type of radiation, galactic cosmic