this post was submitted on 14 Oct 2024
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No Stupid Questions

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So I've heard and seen the newest launch, and I thought for a private firm it seemed cool they were able to do it on their own, but I'm scratching my head that people are gushing about this as some hail mary.

I get the engineering required is staggering when it comes to these rocket tests, but NASA and other big space agencies have already done rocket tests and exploring bits of the moon which still astounds me to this day.

Is it because it's not a multi billion government institution? When I tell colleagues about NASA doing stuff like this yeaaaars ago they're like "Yea yea but this is different it's crazy bro"

Can anyone help me understand? Any SpaceX or Tesla fans here?

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[–] [email protected] 9 points 6 months ago

They are pretty focused on reducing the cost of launches by aggressively re-using components that would normally crash into the sea. Previous launches landed on floating sea platforms but yesterday's heavy was so big it needed a more stable landing zone. So after boosting the Star Liner the rocket returned down the trajectory it had followed up and then hovered briefly before being caught by two pincers on the very launch pad it had left five minutes before. That's pretty cool.

[–] [email protected] 9 points 6 months ago

If SpaceX landing and reusing rockets is not impressive to you then what is?

[–] [email protected] 8 points 6 months ago (1 children)

Short answer economics. Long answer a reusable rocket platform reduces the cost per launch to a fraction the price of traditional launches. That reduced the price per kg of mass in space making far more possible in space. I think ultimately its selling the idea that humanity can be a multi planetary species where we shall own the stars.

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[–] [email protected] 5 points 6 months ago

first of all, allow me to State my opinion of Elon musk in one short sentence.

second of all, I will answer your question.

[–] [email protected] 5 points 6 months ago (2 children)

I read that nasa can't even make saturn v rockets anymore. that the design documents and manufacturing techniques weren't properly archived and everyone that worked on them has died by now. idk if any of that is true.

[–] [email protected] 10 points 6 months ago (1 children)

That’s kind of like saying that ford can’t make a model t anymore.

I’m sure they could, there’s just no reason to.

I’m also sure the contractors that built the Saturn V, those that are still in business, could build equivalent parts today if the government asked.

The Saturn five was an absurdly large rocket designed specifically to get 3 people from earth to the moon. It was insanely expensive per launch, and the only reason it ever flew was because the government was writing nasa blank checks in order to beat the soviets.

Today the government wants a reasonable dollar figure for a launch, and the days of spending a billion dollars per launch are long past.

[–] [email protected] 9 points 6 months ago

It is true that we cannot make Saturn V rockets anymore.

The drawings are preserved, and even if they weren't, we have a few examples of unflown ones on display to study. There has been some institutional knowledge lost, several components were made by welding techniques we don't use anymore. Also, many of the components and materials used in the Saturn V are not manufactured anymore and are not available.

Building another Saturn V isn't entirely impossible, but the amount of retooling and re-engineering we'd have to do to the designs to get a flyable rocket we might as well just start over and call it a clean sheet design. Like Falcon Heavy, which put a sports car into solar orbit, or SLS which flew an Orion capsule around the moon in 2022.

[–] [email protected] 4 points 6 months ago

Both are doing impressive things, but only one is deliberately using media to build hype.

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