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ISS Science Garage - Espresso in Space

Key Facts In This Video

  1. The machine brews with superheated water. This requires a combination of heat and pressure, following the ideal gas law (PV=NRT). 00:49

  2. Astronauts use zero-gravity coffee cups, which use surface tension to keep the espresso from floating away. 02:20

  3. The water used comes from a combination of fresh and recycled sources, including distilled toilet water, sweat, and other waste. 07:02

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