How the shield that saves Artemis II works [🎞️ thebrainmaze]

I’m praying for a successful re-entry! This mission is risky and should have stayed unmanned. Artemis I already had a heatshield failure (even though the lander was fine), yet NASA’s “fix” is a steeper, hotter entry profile that’s completely unproven. What if the faster path cracks the shield even worse than last time? @SpaceX and @elonmusk are constantly hammered for high-risk unmanned stuff, due to their rapid development. And yet here NASA is rolling the dice with a crew on the line and everyone but me are silent. Smarter people than me are involved and it’ll probably be okay… but the whole point of Artemis I was to prove the hardware unmanned — and it failed. So why not run one more unmanned test before putting astronauts on board? It’s not like the landing hardware is anywhere close to ready (SpaceX and Blue Origin still have to deliver), so another flight would only cost time — and time isn’t even NASA’s to control right now anyway. Quick reminder Artemis I used a “skip” maneuver. The Avcoat shield charred and released gases on the first dip. When it bounced back into space, the outside cooled and stopped ablating, trapping super-hot gas inside. That pressure cracked the shield and blew chunks off in over 100 spots. The “milder” heating actually slowed the protective char layer while still generating gas — the worst possible combo.Artemis II’s steeper “loft-type” trajectory skips the skip entirely: higher peak temps but much shorter duration so the pressure can’t build up. Bold plan… but it’s still a gamble with people on board. Fingers crossed it works. 🚀

Be there or be told

So, how did the Neil Armstrong & co achieve this feat in 1969 with far lesser technology??

Not to mention, it must survive a Skip Re-Entry. Orion's re-entry sets it apart from anything NASA has flown with crew before. 𝐒𝐤𝐢𝐩 𝐑𝐞-𝐄𝐧𝐭𝐫𝐲 Orion doesn't go straight down into the atmosphere like Apollo did. Instead, it skips back up. Think of it like skipping a rock across a pond. The capsule goes into the upper atmosphere, slows down a little, then rises back up for a short time above the denser layers before going back down for the last time.

This is the stuff I come to this app to learn! Thank you

Did you know that you are currently moving through the solar system at 66 600 mph?

It’s crazy to think about. Hurling through space hitting 25k mph on entry hitting 2800 C. How much of the capsule is reusable after this kind of use I wonder?

1000% LIES If you believe any of this. You are Old and/or watch too much mainstream media.

In Arabic 👇🏻👇🏻

🤓Heat shield’s epic burn saves Artemis II! 🔥🛡️🚀

FYI: Lockheed is designing a new heat shield for Artemis III

So, safe to say they are expected to land on water ( The ocean) with this. Pardon my curiosity 😀 Isn't it a heavy spacecraft that could sink and get them drown?

40,000 km x h??? 🤣😂🤣🤡🎪🤡🎪🤡 with that speed you can travel to the past a come back. For God sake, for real people believe in this Crap?

How many times has this been done? How has the tech not advanced lol

The Artemis II heat shield protects the crew during their 25,000 mph reentry by using a process called ablation. The 16.5-foot shield is covered in a material called Avcoat, which is designed to intentionally char and erode, carrying 5,000°F heat away from the capsule as it vaporizes. Following "unexpected" chipping during the uncrewed Artemis I flight, NASA adjusted the reentry trajectory for today's return, opting for a steeper, more direct descent to minimize the time the material is exposed to peak thermal stress.

They never went to space

lol as if the heat shield just makes everything above it cool down enough that it doesnt absolutely melt.

Bonne chance pour nos 4 fantastiques!

Why can't we get real video of this instead of just cartoon depictions?

Do the cooler guys get to sit in the back?

@vtimphony

We did all this in the 1960s, let's stop patting ourselves on the cultural back already. It's more of a cultural indictment than an accomplishment.

We learned this in the 60's. This is regression

Your illustrations are more credible but we are in the 21st century, still no live video only poor quality still pictures, flying in tin cans without windows, still dropping at sea & Elon who can do better with live video's none of his crafts has shown any evidence leaving earth.

Just like pro wrestling, you can pretend it’s real to make it more entertaining for you, but reality is with NASA, it’s all staged.

Incredible animation the way avcoat chars and erodes to protect the crew is pure engineering genius will this steeper reentry profile be used for Artemis i II too

💯boring hoax

This is scary to me. I hope they have a safe landing back on 🌍

😂

Why not use Platinum$🤔