NASA switches launch provider from ULA to SpaceX for its SunRise solar mission
NASA yesterday announced that it has switched the rocket it will use to launch its SunRise six-cubesat mission to study the Sun’s corona, from ULA’s Vulcan rocket to SpaceX’s Falcon Heavy, becoming a secondary payload on a Space Force launch.
NASA’s SunRISE (Sun Radio Interferometer Space Experiment) mission will launch on a SpaceX Falcon Heavy rocket from the agency’s Kennedy Space Center in Florida, shifting from its original ride into space aboard a United Launch Alliance Vulcan Centaur vehicle. NASA will share updated launch timing in the near future. The heliophysics mission will fly as a rideshare sponsored by the United States Space Force’s Space Systems Command.
The launch was originally supposed to take place now, in the summer of 2026, but at present the Vulcan rocket is grounded due to problems with its solid-fueled strap-on boosters. NASA apparently decided it would be better to switch to the Falcon Heavy launch, even though as a secondary payload it loses control over exactly when it can launch, and at present the Space Force’s next Falcon Heavy launch is scheduled for 2027.
The switch means a loss of more income for ULA due to its inability to get Vulcan launching regularly and reliably. It also suggests Vulcan repairs remains stalled, and that it will not resume regular launches until next year.




