27. How does space move around when it can't move at all? (A K2S Question)

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Space does not move—any movements that human beings or spacecraft make in space must be judged relative to some other object like the Earth or the Shuttle. For example, the Space Shuttle travels in an orbit that requires it to have a speed of 17,500 miles per hour (mph). If an astronaut steps out of the Shuttle to perform some activities in space, he or she would also be traveling at this speed which is based on the Shuttle's 90 minute orbit around our home planet.


Answer provided by Jim Zebrowski


Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to Space - by Lonnie Schorer