Blue Origin fires up its next big rocket engine for the first time

For the first time, Blue Origin successfully fired up its BE-4 rocket engine, a crucial piece of hardware the company has been working on for the last six years. Blue Origin tweeted out a video today of the test, known as a “hot fire,” which was conducted at the company’s test facility in Texas. It’s a major stepping stone in the development of the engine, which is slated to play a key role in Blue Origin’s economic future.The BE-4 is slated to play a key role in Bl