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Simple, Fuel-Efficient Rocket Engine Could Enable Cheaper, Lighter Spacecraft

It takes a lot of fuel to launch something into space. Sending NASA’s Space Shuttle into orbit required more than 3.5 million pounds of fuel, which is about 15 times heavier than a blue whale. But a new type of engine — called a rotating detonation engine — promises to make rockets not only more

Delta 4 Rocket Launches Air Force’s 10th WGS Broadband Satellite

United Launch Alliance placed a new satellite in orbit with a fiery Friday night blastoff from Cape Canaveral, using a version of the Delta 4 rocket that is nearing retirement to supplement a U.S. military network relaying signals from drones and battlefield commanders. After ground teams cleared several technical hurdles with the rocket and a

Air Force Pushes Ahead With Rocket Engine Efforts

The Air Force Research Laboratory’s initiative to help lessen the service’s reliance on Russia’s RD-180 rocket engine has passed a major milestone, according to service officials. The kick pump of the hydrocarbon boost program recently completed testing at different power levels, said program manager Robert Bernstein. The program is aimed at developing advanced staged combustion