The scheduled Sunday launch could mark a new phase in competition in the commercial space market, and pave the way for the deployment of Amazon's Kuiper satellite network.

A successful test flight of Blue Origin’s New Glenn rocket would allow Jeff Bezos’ space venture to compete against Elon Musk’s SpaceX.

Bezos' New Glenn and Musk's Starship both are heading for launch, and both could lift off in close timing to each other. Here's what we know.