Elon Musk @elonmusk
@neiltyson @Space_Station Most people aren’t aware that orbit (and “zero” gravity) is all about horizontal speed, not altitude. A spacecraft needs to travel about 25 times the speed of sound to stay in space. — PolitiTweet.org
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Mon Oct 14 20:41:40 +0000 2019
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Likely AvailableElon Musk @elonmusk
@neiltyson @Space_Station Most people aren’t aware that orbit (and “zero” gravity) is all about horizontal speed, not altitude. A spacecraft needs to travel about 25 times the speed of sound to stay in space. — PolitiTweet.org