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He suddenly couldn't speak in space. NASA astronaut says his medical scare remai

7 pointsby bookmtntoday at 3:59 AM1 commentview on HN

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Guestmodinfotoday at 4:55 AM

Just wanted to clarify: Here "space" means merely 300km above earth's surface and not thousands or millions. Even 300km is very difficult to survive (space station's zero gravity, etc.)