If you want to see science fiction at work, visit a modern machine shop, where 3-D printers create materials in just about any shape you can imagine. NASA is exploring the technique--known as additive manufacturing when used by specialized engineers--to build rocket engines as well as potential outposts on the Moon and Mars. Nearer in the future is a different milestone: NASA's Perseverance rover, which lands on the Red Planet on Feb. 18, 2021, carries 11 metal parts made with 3-D printing.
If you want to see science fiction at work, visit a modern machine shop, where 3-D printers create materials in just about any shape you can imagine. NASA is exploring the technique--known as additive manufacturing when used by specialized engineers--to build rocket engines as well as potential outposts on the Moon and Mars. Nearer in the future is a different milestone: NASA's Perseverance rover, which lands on the Red Planet on Feb. 18, 2021, carries 11 metal parts made with 3-D printing.
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