AR-22 engine
An AR-22 fires on a test stand at the Stennis Space Center July 2, the sixth in a series of daily tests of the engine.

Lockheed Martin’s proposed $4.4 billion acquisition of rocket engine manufacturer Aerojet Rocketdyne is under a cloud of uncertainty after Federal Trade Commission Chair Lina Khan expressed concerns about vertical mergers.

This post is only available to members.

Sandra Erwin writes about military space programs, policy, technology and the industry that supports this sector. She has covered the military, the Pentagon, Congress and the defense industry for nearly two decades as editor of NDIA’s National Defense...