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Star Talk: Rockets make combustion possible in vacuum

Sunday, October 28, 2012
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In space, there is no air and therefore no oxygen to allow combustion of fuel. A rocket supports combustion by bringing along its own oxygen in liquid form. The oxygen is combined with the fuel, an igniter sparks and the mixture explodes. This combustion process produces hot gases that escape through the rocket engine’s nozzle to push the rocket forward....

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