An innovative small rocket company got a little further Wednesday with a test of what could be the cheapest rocket engine ever made – if it works.

Cheap rockets could mean more space business, jobs and launches. Engineers put together what might be called the craziest rocket engine you ever saw. “We’re literally burning laughing gas and Legos with this motor,” Rocket Crafters President Rob Fabian said. The rocket motor wasn’t built, it was printed on a 3D printer.

The Rocket Crafters test rocket started during a test, then stopped because of a seal failure, making it a partial success. That follows a test last week in which it never really started at all, producing nothing but a little smoke. This kind of engine has been successfully fired dozens of times, but has had aborts when reporters were invited to watch. If there is an abort, the rocket can […]

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