It's been barely a month since rocket-ship start-up Relativity Space made history, launching the world's first (nearly) 100% 3-D-printed rocket (almost) all the way into orbit. 

While technically a failure (because it didn't achieve its intended orbit), Relativity's March 22, 2023 Terran 1 launch was close enough to a success that the company is taking its next step into space. Without passing "Go," and without collecting $200 (or executing its contracts to launch six Iridium satellites on Terran 1 launch vehicles), Relativity is ditching the Terran 1 design and proceeding to develop an entirely new, even bigger rocket: The Terran R.

And it's going to look a lot like SpaceX's Falcon 9.

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Source Fool.com