this post was submitted on 08 Dec 2024
19 points (100.0% liked)

NASA

1007 readers
12 users here now

Anything related to the NASA (National Aeronautics and Space Administration); the latest news, events, current and future missions, and more.

Note: This community is an unofficial forum and is unaffiliated with NASA or the U.S. government.

Rules

  1. Be respectful and inclusive.
  2. No harassment, hate speech, or trolling.
  3. Engage in constructive discussions.
  4. Share relevant content.
  5. Follow guidelines and moderators' instructions.
  6. Use appropriate language and tone.
  7. Report violations.
  8. Foster a continuous learning environment.

founded 2 years ago
MODERATORS
antangil
L7ePvmEn
19
After critics decry Orion heat shield decision, NASA reviewer says agency is correct (arstechnica.com)
submitted 1 week ago by [email protected] to c/nasa
1 comments fedilink hide all child comments
top 1 comments
sorted by: hot top controversial new old
[–] [email protected] 5 points 1 week ago

Counter-intuitively, the heat shield was not permeable enough during Artemis I. This led to gas buildup, higher pressures, and the cracking ultimately observed. The IRT was concerned because, as designed, the heat shield for Artemis II is actually more impermeable than the Artemis I vehicle.

That doesn't sound promising. I guess they redesigned the entry to be quicker, but it's a little concerning that the Artemis 2 heat shield is likely worse than the Artemis 1 shield.