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areoformtoday at 12:20 AM9 repliesview on HN

Glad that they're safe and sound.

It's worth pointing out that this is the first extremely public, widely acknowledged high risk mission NASA has done in over 50 years. The Shuttle was risky, but it wasn't thought of or acknowledged by NASA as being risky until very late in its lifecycle.

According to NASA's OIG, Artemis acceptable crew mortality rate is 1 in 30. Roughly 3x riskier than the shuttle. There genuinely is a world where they don't make it back home.

I am grateful that they did. And I'm grateful that we're going to go even further. I can't wait to see what Jared's cooking up (for those who don't know, he made his own version of the Gemini program in Polaris and funded it out of pocket).


Replies

irjustintoday at 12:54 AM

> Artemis acceptable crew mortality rate is 1 in 30.

This seems insane to me. That X decades later we accept, with all our advancements in tech, a weaker system than ever before. That if we send 30 people we _accept_ that one is possible to die.

That's the starting point? That's what we document as acceptable?

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roughlytoday at 2:36 AM

Astronauts are, as a group, extremely risk loving. Every single person who signs up to go into space knows what they’re signing up for - they’ve spent their entire life working for the opportunity to be put in a tin can and shot into orbit atop a million pounds of explosives. There’s a very valid critique that NASA has become far too risk averse - we owe it to the astronauts to give them the best possible chance to complete the mission and make it back safely, but every single person who signs up for a space mission wants to take that risk, and we don’t do anyone any favors by pretending that space can be safe, that accidents are avoidable, or that the astronauts themselves don’t know what they’re signing up for. A mission that fails should not be considered a failure unless it fails because we didn’t try hard enough.

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big-chungus4today at 7:07 AM

Glad that you are glad that they are safe and sound

rkagerertoday at 3:34 AM

> Artemis acceptable crew mortality rate is 1 in 30.

How did they arrive at that number?

(Eg. Did they arbitrily establish the target at the outset? Or did it evolve by gauging the projected failure rate of their core mechanical etc. systems as those began to take shape, then establishing a universal minimum in line with that, to achieve some level of uniformity and avoid drastically under/over-engineering subsequent systems?)

pictureofabeartoday at 12:50 AM

An error in any of the orbital math may have seen them flung out into space with no chance of recovery.

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philistinetoday at 12:28 AM

I’d bet a million dollars that Orion will win every safety metric compared to the shuttle once it is retired. NASA deluded itself in thinking the Shuttle was safe. The reality is that the Shuttle was the most dangerous spaceship anyone ever built.

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pramitdevtoday at 2:03 AM

[dead]

conartist6today at 3:44 AM

I mean it's the first space crew on an anti-science mission, right?

The point of them being there isn't discovery, it's to try to discourage anyone who wants try to understand and protect the planet that we all rely on for life

normie3000today at 6:58 AM

> Artemis acceptable crew mortality rate is 1 in 30.

So with 4 crew members, chance of one dying was 13%! Very lucky they all survived.