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Time dilation
Is that how you spell it ?
I just read about a hipothetical space ship taking a round trip to a star 100 light years away. They are traveling a fraction under the speed of light. It said that those on board would age 2 years but 200 years would pass on earth. Everyone they knew would be dead when they got back. I just have alittle trouble understanding the hows of it . Can anyone help?
Thanks for any smarts you can all share.
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