Nỗi khổ sở của phi hành gia
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Nỗi khổ sở của phi hành gia
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![Nỗi khổ sở của phi hành gia 230510105733-02-sleeping-in-space-cassada](https://media.cnn.com/api/v1/images/stellar/prod/230510105733-02-sleeping-in-space-cassada.jpg)
NASA astronaut Josh Cassada is bundled up in his crew quarters on the International Space Station on March 2.
For example, most people don’t have to worry about floating away from their beds due to zero gravity. Don’t worry — astronauts use special restraints to keep them from floating through the space station while asleep.
Two of the biggest challenges for astronauts include their sleep environment and the establishment of a natural sleep cycle.
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![Nỗi khổ sở của phi hành gia 230510105733-02-sleeping-in-space-cassada](https://media.cnn.com/api/v1/images/stellar/prod/230510105733-02-sleeping-in-space-cassada.jpg)
NASA astronaut Josh Cassada is bundled up in his crew quarters on the International Space Station on March 2.
NASA
For example, most people don’t have to worry about floating away from their beds due to zero gravity. Don’t worry — astronauts use special restraints to keep them from floating through the space station while asleep.
Two of the biggest challenges for astronauts include their sleep environment and the establishment of a natural sleep cycle.
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![Nỗi khổ sở của phi hành gia C7f64202b0357f04c779d805f437c5fc](https://2img.net/h/upload.vstanced.com/images/2019/01/08/c7f64202b0357f04c779d805f437c5fc.gif)
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