Blue-LA — Pairing of two launch companies could provide more robust competition to SpaceX. Enlarge / The first Vulcan rocket fires off its launch pad in Florida in January 2024.United Launch Alliance The rocket company owned by Amazon founder Jeff Bezos, Blue Origin, has emerged as the sole finalist to buy United Launch Alliance. The sale is not official, and nothing has been formally announced. The co-owners of United Launch Alliance (ULA), Lockheed Martin and Boeing, have yet to comment pub...