How NASA's Artemis 1 Orion spacecraft will splash down to end its moon mission in 8 not-so-easy steps
The eight main steps of Orion's epic landing sequence are below.An artist's illustration of NASA's Artemis 1 Orion spacecraft separating from its service module built by the European Space Agency.
After discarding its unneeded service module, which supplied electricity and power for nearly a month, Orion will do a daring skip maneuver off the edge of Earth's atmosphere. The capsule will use a bit of our protective envelope, along with associated lift, to skip just like a rock across the surface of a lake. This maneuver wasn't possible during the Apollo program, but advances in spacecraft navigation make that possible today.
. The heat shield includes a strong titanium truss with a composite"skin" made of flexible carbon fiber, along with an ablative material to deliberately shed some of the shield off into the atmosphere to take stress off the rest of the system and carry heat away from the spacecraft.A screenshot of Orion during the latter stages of reentry.
"It's perfect for spaceflight, where every additional pound is more costly," Orion spacecraft maker Lockheed Martin"Parachutes aren't built to withstand the 5,000-degree Fahrenheit [2,600 degree-Celsius] temperatures upon re-entry — they would be too heavy and unable to generate enough drag to slow the spacecraft down — so the forward bay cover protects them until just the right moment."Screenshot of Orion deploying its two drogue parachutes during a test in 2009.
Orion's drogue parachutes will then cut away, allowing for the three pilot parachutes to deploy. These parachutes are roughly 11 pounds in mass each and are also made of Kevlar/Nylon hybrid material.
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