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?

  • frezik@midwest.social
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    3 months ago

    Here’s some solid numbers:

    https://www.researchgate.net/figure/Launch-Cost-Per-Kilogram-to-Low-Earth-Orbit-LEO-US-Thousands_fig1_361415873

    The Shuttle was so expensive that it might have been better to keep using the Saturn V. It accomplished a lot, but was ultimately a failure at its original goal of a reusable rocket with a fast turnaround. Some of the old hopes for it were to launch 100 Shuttle missions per year. As problems were found, it was clear it would never be close to that.

    Falcon 9 was already an order of magnitude drop from what came before. Being able to grab the Starship booster by the chopstick method means it can quite possibly do the quick turnaround the Shuttle promised. That could mean another order of magnitude drop. Possibly even two orders of magnitude.

    That’s transformative. It’s not just cheaper. It let’s things be done that weren’t possible before.

    One subtle thing that’s already come out of this is related to Starlink. Now, this has a whole lot of problems that I won’t get into here, but it does have one fascinating effect. A rocket coming back down generates plasma that blocks radio signals to the ground. This means there’s a blackout time where everyone in mission control stands by nervously while waiting to hear if it blew up or not.

    What Starlink does is provide a high bandwidth link above the rocket, letting them relay data back to the ground. This means that not only do we have full communication during reentry, but even a live video feed of the exterior. This was not possible until fairly recently.

    It should also be noted that we SpaceX didn’t do this on their own. They benefited from decades of NASA R&D, launch facilities, and funding. Their biggest success comes from working around the pork barrel politics that hangs around NASA’s neck.