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by bfe
4648 days ago
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Liquid hydrogen has what Elon Musk calls the pain-in-the-ass factor. It requires much higher volume tank at much lower temperature, adding lots of mass to the rocket, and it's impossible to effectively seal. RP-1 kerosene has the inconvenience of requiring your planet to have been covered with life a hundred million years ago. So, methane is the liquid fuel of choice for future martians. |
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