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      engines or motors that give extra power to a rocket

The two solid rocket boosters will give the Space Launch System the power to launch.

The Delta II (2) rocket uses nine solid rocket boosters to lift it into space.


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Drawing of a Solid Rocket Booster
Picture of a Solid Rocket Booster


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Boosters falling off a rocket in space
This drawing shows boosters falling off NASA’s Space Launch System.
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Page Last Updated: October 3rd, 2014
Page Editor: Sandra May