ANDY HARDIN, A PROPULSION ENGINEER AT NASA'S MARSHALL SPACE FLIGHT CENTER IN HUNTSVILLE, ALABAMA, SHOWS A 3-D PRINTED ROCKET PART MADE WITH A SELECTIVE LASER MELTING MACHINE. PARTS FOR THE SPACE LAUNCH SYSTEM'S RS-25 ROCKET ENGINE ARE BEING MADE WITH THE MACHINE IN THE BACKGROUND

JIM LYDON (LEFT-GREEN SHIRT) BRUSHES METALLIC POWDER OFF OF A RECENTLY PRINTED ROCKET PART EXAMINED BY ZACH JONES, RIGHT, IN MSFC'S ADDITIVE MANUFACTURING LAB