SUMMARYTechnicians installed all four RS-25 engines on the Artemis III core stage work stand at NASA’s Kennedy Space Center on September 1, 2026, advancing assembly for the lunar mission. Isar Aerospace is preparing another Spectrum launch attempt from Andøya Spaceport in Norway to place small CubeSats into orbit after earlier delays.

Technicians complete installation of all four RS-25 rocket engines on the work stand for integration with the Artemis III core stage on Tuesday, September 1, 2026, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida.
NASA/Clayton Rougelot
arstechnica.com
Technicians complete installation of all four RS-25 rocket engines on the work stand for integration with the Artemis III core stage on Tuesday, September 1, 2026, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida.

Welcome to Edition 9.09 of the Rocket Report! This edition includes an update from Blue Origin on the groundbreaking of a new Payload Processing Facility in Florida. It has been about a month since the company offered any meaningful news on its heavy-lift New Glenn rocket, which remains grounded after an on-pad explosion at Cape Canaveral Space Force Station in May. The official line from Blue Origin is that the company is targeting a return to flight with New Glenn by the end of the year, but there's good reason for skepticism.

As always, we welcome reader submissions. If you don't want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

Isar Aerospace is ready to try again. Isar Aerospace is about to make the next attempt to launch the Spectrum rocket into orbit, with a weeklong launch window set to open Friday at Andøya Spaceport in Norway, the Norwegian Broadcasting Corporation (NRK) reports. The German launch company aims to deliver several small CubeSats to orbit with the two-stage Spectrum rocket. A test flight of the privately funded launcher failed shortly after liftoff last year, and Isar has attempted to launch the second Spectrum rocket several times since January, only to be thwarted by technical problems and the unavailability of the launch range in northern Norway.

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