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Isn't the US still buying rockest from Russia for critical launches? I'd say Russia might have a bit of an edge.



The US doesn't buy rockets from Russia, ULA uses the RD-180 engine until the new Blue Origin engine is ready. The ULA rockets are eg Atlas V (uses the RS-180) and Delta IV. The Delta IV rocket and heavy lift variation uses the RS-68 [1] engine, which is US tech. Their new Vulcan rocket will use the Blue Origin engine.

SpaceX is certified for critical / national security launches and does not use Russia tech.

[1] https://en.wikipedia.org/wiki/RS-68


Yeah, I meant rocket engines. I realize there's a lot more to a rocket than just the engines.


Not buying but getting people to the ISS is done with russian rockets (i.e. No space shuttle anymore)




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