How astronauts manage sleeping arrangements when the space station gets crowded
In short: The International Space Station typically hosts six people, but recent missions have pushed that number to 11. With more crew members arriving than there are dedicated beds, astronauts must find creative ways to rest while orbiting the Earth.
When the station's population swells, the logistics of rest become a significant challenge. While the U.S. segment of the station provides four astronaut beds, a surge in crew members can leave several individuals without a permanent sleeping spot. During one such period, when 11 people were aboard, commanders Mike Hopkins and Shane Kimbrough opted to sleep in their Crew Dragon capsules to free up space. This crowding occurred because eight of the eleven crew members arrived via SpaceX Dragon capsules. Specifically, four individuals arrived on the Crew-1 mission and another four arrived on Crew-2.
This overcrowding necessitates the use of makeshift arrangements known as CASA, or Crew Alternate Sleep Accommodation. Under these conditions, crew members must utilize various modules for rest. For instance, during a period of high occupancy, JAXA's Soichi Noguchi slept in the astronaut gym, while NASA's Victor Glover rested in the airlock and Shannon Walker used the Columbus module. The temporary sleeping solutions were nicknamed CASA, which translates to house in Spanish. This acronym stands for Crew Alternate Sleep Accommodation.
These logistical shifts are often temporary. For example, the arrival of the SpaceX Crew-13 mission brought the total occupancy to 11, following a record-setting 7-hour, 55-minute flight from Florida. Such surges in population require careful coordination of mission responsibilities and safety gear transfers to ensure the station remains a functional laboratory despite the increased density of its inhabitants. These periods of high occupancy are usually short-lived. For instance, the arrival of the Crew-14 mission was expected to resolve the congestion quickly.
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Sources
- Summary by Intellect · source: Next Space Station Crew Gets Comfy Prior to Launch
- Also: NASA — Station Crew Expands as NASA’s SpaceX Crew-12 Prepares to Depart - NASA
- Also: With 11 people on space station, astronauts get crafty with sleeping spots | Space
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