NASA Switches SunRISE Solar Storm Mission Launch Vehicle to SpaceX Falcon Heavy
The switch to Falcon Heavy, which has a clean launch record including for NASA, signals a preference for reliability in a mission whose small satellites must deploy antennas in geostationary orbit to act as a radio telescope.
Reporting from 1 source: GIGAZINE.
NASA has changed the launch vehicle for its SunRISE mission, which studies solar storms using six CubeSats, from ULA's Vulcan Centaur to SpaceX's Falcon Heavy. The reason was not disclosed, though the change follows anomalies in two of Vulcan Centaur's four launches. The launch date remains undetermined.
NASA's SunRISE mission will now ride a SpaceX Falcon Heavy instead of ULA's Vulcan Centaur. The change was confirmed in a July 2026 update, though NASA did not explain why. Vulcan Centaur has seen anomalies in two of its four launches, while Falcon Heavy has completed 12 successful launches since 2018, four for government customers and three for NASA since 2023.
SunRISE is a solar radio interferometer using six CubeSats. After reaching geostationary orbit at 36,000 kilometers, the satellites deploy 2.5-meter antennas and work together as one large radio telescope to track solar radio bursts. The launch date has not been set. NASA also plans to launch the Nancy Grace Roman Space Telescope on a Falcon Heavy in August 2026.
Synthesized by Yomimono from the 1 cited source below, including Japanese-language reporting where cited, then editorially reviewed before publishing.