World’s Most Powerful Hydrogen-Fueled Rocket Engine Completes Final Acceptance Test for ULA Delta IV Heavy Launch Vehicle

STENNIS SPACE CENTER, Miss., April 12, 2021 (GLOBE NEWSWIRE) — Today, the world’s most powerful hydrogen-fueled rocket engine built by Aerojet Rocketdyne, the RS-68A, completed its final hot-fire acceptance test for use on the United Launch Alliance (ULA) Delta IV Heavy launch vehicle on the B-1 Test Stand at NASA’s Stennis Space Center in Mississippi.

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