Will Isar Aerospace's Spectrum rocket successfully reach an altitude above 100 km (Kármán line) during its second test flight attempt in May 2026?

Isar Aerospace officially reports the Spectrum rocket exceeded 100 km altitude during its second test flight, with the result published on isaraerospace.com by May 28, 2026. Source: Isar Aerospace official post-flight press release at isaraerospace.com