Mondo Knows Facts
The International Space Station orbits Earth every 90 minutes
Travelling at 28,000 kilometres per hour astronauts see sixteen sunsets every day
Orbiting roughly 400 kilometres above Earth's surface, the International Space Station travels at a speed of about 27,600 kilometres per hour. At this high velocity, the station completes a full revolution around Earth every 90 minutes, allowing crew members to witness 16 sunrises and sunsets every 24 hours.
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Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.
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Tags: iss, orbit, space station
The International Space Station orbits Earth every 90 minutes: the short answers
- Where does this come from, and can I check it?
- Travelling at 28,000 kilometres per hour astronauts see sixteen sunsets every day. The figure is taken from NASA Science, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
- Is this really a space fact?
- Yes. It sits on the Space shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
- What else can I read about it?
- The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.
