The sky rumbled and the ground shook as the three most powerful hydrogen-fueled liquid rocket engines ever built successfully boosted a U.S. government satellite into orbit. Developed by Pratt & ...

Pratt & Whitney Rocketdyne successfully completed a series of Hardware Acceptance Reviews on the first RS-68A production rocket engine, validating the world’s most powerful hydrogen-fueled engine is ...

Pratt & Whitney Rocketdyne (PWR) has started hot-fire tests of the RS-68A upgrade to the main engine for the United Launch Alliance Delta IV space launch vehicle with a 40-second burn at Stennis Space ...

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 ...

WEST PALM BEACH, Fla. — Pratt & Whitney Rocketdyne (PWR) is poised to complete development of the RS-68A, the most powerful hydrogen-fueled engine ever made, and this week will deliver the third ...

A United Launch Alliance (ULA) Delta IV Heavy rocket carrying a payload for the National Reconnaissance Office (NRO) lifted off from Space Launch Complex-37 here at 9:15 a.m. EDT today. Designated ...

CANOGA PARK, California -- Pratt & Whitney Rocketdyne, a United Technologies company, announced today it has successfully completed the Design Certification Review for the upgraded RS-68A engine ...

“We are proud to celebrate this success with our United Launch Alliance customer on a test series that went above and beyond in demonstrating the robustness and reliability of the RS-68A engine,” said ...

Two prominent engine manufacturers, Alliant Techsystems and Pratt & Whitney Rocketdyne announced major upgrades of their existing rocket motors for future launches to low earth orbit. Pratt & Whitney ...