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Living in Microgravity
Sleeping in Space
Space has no up or down, so there’s
no sensation of lying down when
▲ Astronauts sleep inside astronauts sleep.
secured sleeping bags.
While in space, astronauts
see a sunrise every 90
minutes. To block out light
on the ISS, they use eye
masks.
Unit 12 | Living in Microgravity
