Foamless and ingestible toothpaste developed for space flight by NASA in the 1960s. First used by the Apollo 10 crew.
Previously:
How astronauts stay fit in the ISS - GIF
Zero gravity astronaut coffee cup - photos and video
Drinking water in space - GIF
Apollo astronaut survivalist kit and training - photos
How astronauts sleep on the International Space Station - GIF
Bookmarks