Spectrum (Isar)

Isar Aerospace's second Spectrum rocket, mission "Onward and Upward," reached T-3 seconds before engine ignition at Andøya Spaceport in Norway on March 25, 2026 when the countdown was aborted. A range violation by an unauthorized vessel delayed the window, during which propellant temperatures rose outside acceptable margins — forcing the scrub. The mission was designed as a qualification flight to SSO carrying five cubesats and one Dcubed experiment, supported by ESA's Boost! programme. No new launch date has been announced.