Isar Aerospace Reaches Orbit on Spectrum Flight Two, Meeting ESA's Launcher Challenge Orbit Condition
Andøya, 5 September 2026
Key points
- Isar Aerospace's Spectrum rocket lifted off at 22:12 CEST on 5 September from Andøya and reached orbit on its second flight, deploying payloads selected through the German Space Agency's microlauncher competition and funded under ESA Boost!
- ESA signed a EUR 197.8 million European Launcher Challenge contract with Isar on 28 August, conditional on an orbital flight before 2028 — the condition was met eight days after signature
- RFA (EUR 186.9 million) and PLD (EUR 169 million) hold the same conditional contracts and have not yet reached orbit
- Vehicles three to seven are in production; a 40,000-square-metre plant is sized for up to forty launches a year; a second pad is under construction in Nova Scotia
- hartpunkt ties the flight to the Bundeswehr's responsive-space concept, under which the Schwert and Schild satellites are to launch on German rockets
Isar Aerospace's Spectrum reached orbit on its second flight from Andøya on 5 September, meeting eight days after signature the condition attached to the EUR 197.8 million European Launcher Challenge contract ESA signed with the company on 28 August.
Spectrum lifted off at 22:12 CEST and deployed payloads chosen through the German Space Agency's microlauncher competition and funded under ESA Boost!, the company said. Signal No. 140 carried the European Launcher Challenge contracts eight days earlier — Isar at EUR 197.8 million, RFA at EUR 186.9 million, PLD at EUR 169 million, each conditional on an orbital flight before 2028 — and noted that none of the three companies had yet flown one. Isar has now cleared that bar; RFA and PLD have not. Daniel Metzler, the company's chief executive: "Launch continues to be the largest bottleneck for the global space industry and from today on, there is a true alternative for commercial and institutional customers."
Isar says vehicles three through seven are already in production, its 40,000-square-metre plant is sized for up to forty launches a year, and a second launch pad is under construction in Nova Scotia. hartpunkt, reporting two days after the flight, links it to the Bundeswehr's responsive-space concept, under which the Schwert and Schild satellites are intended to fly on German-built rockets.
A conditional subsidy just became a live comparison between three companies. ESA wrote the same orbital-by-2028 clause into all three Launcher Challenge contracts on the same day; Isar's flight turns a shared deadline into a running scoreboard, and RFA's and PLD's own flights, whenever they come, will now be read against Andøya rather than against the contract text alone.
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