NASA Fires Up Rocket Engine Made of 3-D Printed Parts
"NASA hot-fired a rocket engine using an injector fabricated from layers of a nickel-chromium alloy powder. That’s cool. What’s cooler? They used 3-D printing to create it. It’s the biggest printed engine component the agency has tested and it’s a big step for NASA, which hopes to implement the technique across several facets of space travel."
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