Why do astronauts have to swallow their toothpaste? - Quora
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Why do astronauts have to swallow their toothpaste? - Quora
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First food in space: toothpaste tubes of applesauce and beef
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NASA Crowdsources Space Food Innovation | APPEL Knowledge Services
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Watch: How UAE astronaut brushes teeth, washes face and hair in space - video Dailymotion
Edible toothpaste made for ailing father sent to space station | The Asahi Shimbun: Breaking News, Japan News and Analysis
First food in space: toothpaste tubes of applesauce and beef
