[panick21]

Difference is SLS has received 2 billion $ a year for 15 years in a row, while SpaceX get that much once and has to actually cover any extra cost themselves. Why do people just totally ignore money when it comes to SLS.

Not to mention that SpaceX got funding in like 2021, and SLS in 2011.

And SLS works, then why can it only launch every couple of years. I mean what good is a rocket that is so hard to produce that the whole politics and everything around it changes between launches. They basically have to teach a whole new group of people about SLS for each launch.

> while SLS did an orbit of the Moon, with real payload satellites.

If you want things launched to the moon, SpaceX, BlueOrigin or ULA could have done that many times every year for the last 15 years just as well.

Starship isn't just another 'look we can launch some stuff to the moon', its much more, and therefore much more difficult.

You are praising SLS for doing the very, very, very minimum that it should have been doing since 2017. And it will do it at most 3 times until 2027.

[hparadiz]

The biggest problem right now with Starship is the heatshield problem. If it's a one and done flight it's actually still worth it but full re-use without solving the heat shield problem is not actually possible (right now). It turns out slamming into Earth's atmosphere at orbital velocity or higher is one of those things that pretty much every material we've thrown at the problem has had problems being used forever. We need to do experimental flights in order to provide more data to materials folks working on this. Honestly I respect the hell out of anyone working on this problem because it's the next big tech hurdle we need besides landing a booster. And this one is still not solved.

[panick21]

I would agree. The heatshield is tricky. But they have shown they can survive without parts of the heatshield. But its a problem for rapid re-usability.

That said, I think Starship architecture can be useful even if this issue is not fully solved.

Starship can be much, much cheaper then SLS even if they throw away the upper stage.