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What's the Gravity Experience?
The stronger the pull of gravity, the slower the clock ticks on Earth. On geosynchronous satellites, which are moving fast relative to us, their time should slow down because they're farther away from Earth's gravity. But in that particular case, it is the speeding up of time from the gravitational difference that wins out. "This is just wonderful every time I think about it," says physicist Neil deGrasse Tyson.