http://www.reddit.com/user/mikedarling
mikedarling11 karma2019-04-11 20:12:03 UTC
Scott Kelly, what's your favorite space memory?
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mikedarling4 karma2019-04-11 20:07:47 UTC
Are efforts underway to test the twins paradox?
mikedarling11 karma
Scott Kelly, what's your favorite space memory?
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