Jeff Bezos ‘ Blue Origin is set for an inaugural launch of its giant New Glenn rocket on Sunday, a long-awaited first leap to Earth orbit that sets up one of the biggest challenges yet to industry dominance enjoyed by Elon Musk ‘s SpaceX.

Blue Origin announced that it will launch its first New Glenn rocket from Cape Canaveral in Florida on Sunday. According to a press release from the company, owned by billionaire Amazon founder Jeff Bezos, a three-hour launch window would be opened between 1 a.m. and 4 a.m. ET on Sunday, January 12.

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.