Astronauts on the International Space Station witness around 16 sunrises and 16 sunsets every day.

Astronauts on the International Space Station witness around 16 sunrises and 16 sunsets every day.

The International Space Station travels at a brisk 17,100 miles per hour. That means it orbits Earth every 90 minutes—so it sees a sunrise every 90 minutes. Thus, every day, the residents of the ISS witness 16 sunrises and 16 sunsets.

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