Blue Origin is counting down to the launch of its New Glenn rocket on an orbital mission that's been more than a decade in the making.

As pointed out by NPR, New Glenn has a similar carrying capacity to SpaceX’s Falcon Heavy rocket, but it stands out with a larger, 23-foot-wide cargo bay. If New Glenn’s launch is successful, it could heat up its rivalry with SpaceX as both companies vie to secure lucrative government contracts.

Jeff Bezos' space company Blue Origin is preparing to launch its New Glenn rocket from the Cape Canaveral Space Force Station in Florida just after midnight on Sunday. It's been a long time coming: the company has been developing the 32-foot-tall rocket,