Posted: Sat, Sep 12, 2015, 10:03 AM ET (1403 GMT)
Engine manufacturer Aerojet Rocketdyne has reportedly offered $2 billion to acquire United Launch Alliance, the Boeing-Lockheed Martin joint venture that manufactures Atlas and Delta rockets. Media reports this week said that Aerojet approached ULA and its corporate parents last month with the $2-billion all-cash offer for ULA, with the potential for a deal to be announced in the near future. Aerojet makes the RS-68 engine used on the Delta 4 and the RL10 engine that powers the upper stage of both the Atlas 5 and Delta 4; it also is developing the AR1 engine proposed for ULA's new launch vehicle, Vulcan, although ULA preferred choice is the BE-4 engine from Blue Origin.

Related Links:

•  Wall Street Journal article
•  Reuters article
•  SpaceNews article
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•  Washington Post article