Ничего особенного, просто ракета NASA, части которой отпечатаны на 3D-принтере gizmodo.com/nasas-3d-printed-rocket-engine-spews-fire-and-20-000-po-1748657671

NASA's 3D-Printed Rocket Engine Spews Fire and 20,000 Pounds of Thrust

This NASA rocket is, bewilderingly, mainly built from 3D-printed parts. And yet pumped full of liquid hydrogen and oxygen it spews flame and generates an insane 20,000 pounds of thrust.