Lead test engineer Ryan Wall, at right in orange shirt, prepares to hot fire test a 3D printed rocket part on Test Stand 115 at NASA's Marshall Space Flight Center in Huntsville, Ala.
These tests are helping young engineers learn how to design, manufacture, and test rocket parts made with a new manufacturing process called 3D printing or additive manufacturing.
August 27, 2013 4:45 PM PDT
Photo by: NASA/MSFC/Emmett Given
| Caption by: James Martin
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