Startup Relativity Space is developing the world's first 3-D printed rocket, which it says is cheaper and quicker to manufacture than conventional rockets.

Ahead of the company’s first orbital launch attempt, WSJ visited its California facility to meet founder Tim Ellis.

0:00 Startup Relativity Space is creating new ways to manufacture rockets
0:51 Background on the global commercial space industry
2:47 How Relativity uses 3-D printers to produce rockets faster
3:30 Relativity’s 3-D printers use proprietary metal alloys
3:50 To refine its rocket designs, Relativity uses algorithms and machine learning
4:20 Following Terran-1, Terran-R is the second rocket from Relativity
6:30 Relativity is planning to be first for a commercial mission to Mars, before Space-X

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