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The competition heats up? Virgin Galactic has released video of a test burn of a new engine designed to work with its LauncherOne rocket.
I put a question mark above because I have become very skeptical of any press announcements out of Virgin Galactic. They might have made progress on this new engine, and it also appears that they are doing engine work first for developing LauncherOne, a wise plan. However, their track record with SpaceShipTwo makes me doubtful about their ability to follow through. They need to produce to make me a believer once again.