PALMDALE, Calif. The Defense Advanced Research Projects Agency (DARPA), Air Force Research Lab (AFRL), Lockheed Martin, and Aerojet Rocketdyne team have flight tested the Hypersonic Air-breathing Weapon Concept (HAWC).

BETHESDA, Md. Lockheed Martin has terminated its agreement to acquire aerospace and defense company Aerojet Rocketdyne Holdings, following the U.S. Federal Trade Commission (FTC) lawsuit filed during January seeking a preliminary injunction to block the acquisition on antitrust grounds.

HUNTSVILLE, Ala. Missile-propulsion company Aerojet Rocketdyne reports a successful test of a full-scale advanced solid rocket motor as part of an ongoing series of trials to support Phase 2 of the Operational Fires (OpFires) program, an effort mounted by the U.S. Defense Advanced Research Projects Agency (DARPA) to develop a ground-launched tactical hypersonic weapon.

NASA -- STENNIS SPACE CENTER, Miss. The powerful hydrogen-fueled rocket engine built by Aerojet Rocketdyne, the RS-68A, completed its final hot-fire acceptance test in preparation for its use on the United Launch Alliance (ULA) Delta IV Heavy launch vehicle.

LOS ANGELES. Aerojet Rocketdyne recently received a contract award to deliver up to two multi-mission radioisotope thermoelectric generators (MMRTG) -- radioisotope power systems that have been used as reliable electrical power sources on multiple deep-space missions -- to the U.S. Department of Energy (DOE) for use in future planetary science missions.

BETHESDA, Md. Lockheed Martin has entered into a definitive agreement to acquire aerospace and defense engine maker Aerojet Rocketdyne Holdings for $56 per share in cash, expected to be reduced to $51 per share after the payment of a preclosing special dividend; the deal will operate on a postdividend equity value of $4.6 billion and a total transaction value of $4.4 billion, including the assumption of net cash.

EL SEGUNDO, Calif. Aerojet Rocketdyne and the Air Force Research Laboratory (AFRL) claim to have achieved record levels of thrust by a scramjet engine. The AFRL-Aerojet Rocketdyne team completed a series of hot-fire tests of an advanced air-breathing hypersonic engine under the U.S. Air Force’s Medium Scale Critical Components (MSCC) program.