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Elon Musk’s SpaceX Starship explodes on test stand
(www.npr.org)
This is a most excellent place for technology news and articles.
I think it's not fair to say that iteration doesn't ever include any steps back. Development isn't always straightforward and it doesn't always go perfectly.
Well, I did say usually. Regressions happen. I’m just being sarcastic because I don’t like Nazi-owned enterprises. /me shrugs