Sally Ride - Why Are Astronauts "Weightless"?

Dr. Sally Ride was the first American woman in space. To become an astronaut she had to go through a lot of training to prepare her for the journey to space and the weightlessness while in orbit around the Earth.


But what does it mean to be "weightless"? Does "zero gravity" really mean that gravity disappears? Experience "weightlessness" from your own home, using this experiment with falling water.




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