The International Space Station is likely to continue operating for another decade, but without more government support, a privately-owned outpost may not be ready in time to replace it, NASA Administrator Jim Bridenstine said.

In addition to carrying an Air Force electric propulsion thruster test, a materials research investigation sponsored by NASA’s Marshall Space Flight Center will be flying aboard the X-37B miniature spaceplane later this month.

United Launch Alliance’s Atlas 5 rocket, modified for crewed launches, rolled out of the Vertical Integration Facility Wednesday for the 1,800-foot trek to pad 41 in preparation for liftoff with Boeing’s Starliner crew capsule on an unpiloted mission to the International Space Station.