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Quest Airlock

Quick Facts

NASA astronaut Shane Kimbrough is inside the Quest airlock during repressurization following a spacewalk on June 6, 2021.

NASA astronaut Shane Kimbrough is inside the Quest airlock during repressurization following a spacewalk on June 6, 2021.

NASA astronaut Stephen Bowen exits the Quest airlock at the beginning of a spacewalk on April 28, 2023.

NASA astronaut Stephen Bowen exits the Quest airlock at the beginning of a spacewalk on April 28, 2023.

Astronaut Mark Vande Hei suits up spacewalkers Kayla Barron and Thomas Marshburn in Quest before they begin their spacewalk on Nov. 18, 2021.

Astronaut Mark Vande Hei suits up spacewalkers Kayla Barron and Thomas Marshburn in Quest before they begin their spacewalk on Nov. 18, 2021.
NASA astronaut and Expedition 63 Commander is pictured in his U.S. spacesuit halfway inside the crew lock portion of the Quest airlock during a spacewalk to replace batteries on the International Space Station's Starboard-6 truss structure.
NASA astronaut and Expedition 63 Commander is pictured in his U.S. spacesuit halfway inside the crew lock portion of the Quest airlock during a spacewalk to replace batteries on the International Space Station’s Starboard-6 truss structure.
NASA

The Quest Airlock is a pressurized space station module consisting of two compartments attached end-to-end by a connecting bulkhead and hatch. The two compartments are the equipment lock which provides the systems for suit maintenance and refurbishment and the crew lock that provides the actual exit for performing spacewalks. The airlock is the primary path for spacewalk entry and departure for astronauts wearing U.S. spacesuits. Quest can also support the Russian Orlan spacesuit for spacewalks.

Length: 18 feet
Diameter: 13.1 feet
Mass: 21,877 pounds

Mission Overview


Launch: 7/12/01
Installation: 7/15/01
Assembly Mission: 7A
Shuttle Mission: STS-104
Vehicle: Space Shuttle Atlantis
Crew on station: Expedition 2

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