Why Is Time Slower on a Space Station?

Time is like a clock, and it can go slower or faster depending on where you are. On Earth, we feel time moving normally, but up in space, where gravity is weaker, time moves just a little bit slower, kind of like how a slow-motion video looks to us.

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Examples

A toy car going around a track feels like it's moving slowly compared to one on the floor
People on Earth feel time normally but astronauts in space have a slower clock
Two synchronized watches, one on a mountain and one at sea level, show different times after a day

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Categories: Physics · relativity· time dilation· space travel· astronauts· gravity