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NASA’s Space Launch System Hot-Fire Test: When to Watch – The New York Times

Before NASA’s giant Space Launch System can go to the moon, it needs to ignite its engine in a “hot fire” stationary test.



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The Falcon Heavy can lift up to 64 metric tons to low-Earth orbit. The initial version of the S.L.S. is a bit more powerful, capable of lifting 70 metric tons, and future versions of the rocket will be able to loft up to 130 metric tons, more than the rockets that carried the Apollo astronauts to the moon.
Although the Space Launch System will be expensive up to $2 billion a launch for a rocket that can be used only once Congress has provided steadfast financial support for it so far. Supporters…

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