Jeff Bezos shows off Blue Origin’s new rocket engine, fully assembled for the first time

Private spaceflight company Blue Origin has finally assembled its first full-scale BE-4 rocket engine — the main engine the company plans to use to propel its future orbital rocket. It’s a major milestone for Blue Origin, which has been working on this crucial piece of hardware since 2011. This morning, CEO Jeff Bezos tweeted out two pictures of the finished engine, noting that two more fully assembled BE-4s will be ready soon.
1st BE-4 engine fully assembled. 2nd and 3rd following c