The latest is scheduled for Friday evening with the launch of 53 of SpaceX's Starlink internet satellites out of California's Vandenberg Space Force Base.

They are New Glenn, which is under development by the Jeff Bezos-backed company Blue Origin, and Vulcan Centaur, a line of rockets from legacy launch company United Launch Alliance, a joint venture from Boeing and Lockheed Martin.

The sheer number of satellites that all those vehicles can launch, including the thousands of satellites expected to add to SpaceX's Starlink constellation and competing satellite internet businesses, have spurred a pressing discussion about congestion in outer space.

With all those rockets active — and a few more smaller launch vehicles also scheduled to begin launching from Florida's Space Coast, which is SpaceX's primary launch site — SpaceX could also run into bottlenecks at the launch pad.

And there's only so many launches they can handle at any given time.

"There's not an endless number of days or launch pads or launch sites where you can get things into orbit," Quilty noted.

Christensen added, however, that the ground support at the Space Coast has proven to be flexible, as evidenced by SpaceX's ability to return a group of astronauts from the International Space Station off the coast of Florida last Friday and then launch a Starlink mission from a launch pad a few miles away mere hours later.