> I don't know why you are being downvoted. Because a launch is a launch, successful or not. Claiming they are behind SLS is kind of crazy. SLS was supposed t

> I don't know why you are being downvoted. Because a launch is a launch, successful or not. Claiming they are behind SLS is kind of crazy. SLS was supposed to launch in 2017 initially. SLS was a creation of a 2011 Congress Act and of course SLS did not develop any of its own engines and is reusing lots of exiting parts and infrastructure. SLS also had absolutely gigantic amount of money when eating about 2.5 billion $ a year for 10+ years and will eat much much more before its first operational flight. SpaceX in comparison was not able to spend even 1/4 for most of Starships development, by now they are getting into the billions per year but that took a while. SLS is also just a far simpler design, basically a slightly adopted Detla 4 Upper Stage, while Starship is basically highly complex new reusable upper stage design.