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Watch NASA Test A Rocket Engine That Could Fuel Up On Other Planets

Watch NASA Test A Rocket Engine That Could Fuel Up On Other Planets

Popular Science - By Mary Beth Griggs

Let 'er rip! Methane is a potent greenhouse gas that we're all very worried about here on Earth. But up in space? That's a whole different ballgame. Unlike liquid hydrogen, which is the fuel of choice for today's rockets, methane is more stable, can be stored safely at higher temperatures, and is …

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