GEM-63XL – Spaceflight Now

June 21, 2026

Breaking News

[ June 20, 2026 ] Live coverage: SpaceX to launch 24 Starlink satellites on Falcon 9 rocket from Vandenberg Falcon 9
[ June 18, 2026 ] SpaceX launches intelligence-gathering satellites for the National Reconnaissance Office Falcon 9
[ June 17, 2026 ] Arianespace launches its heaviest payload to date with Amazon Leo flight Ariane 6
[ June 16, 2026 ] SpaceX launches 3 Block 2 BlueBird satellites for AST SpaceMobile Falcon 9
[ June 16, 2026 ] Astrobotic showcases Griffin-1 lander ahead of environmental testing in California Mission Reports

Solid rocket motor test-fired for Atlas 5 debut next year

October 20, 2019 Stephen Clark

A new solid rocket motor built by Northrop Grumman has aced its final test-firing before a scheduled debut on a United Launch Alliance Atlas 5 rocket flight next year.

Orbital ATK, SpaceX nab U.S. Air Force propulsion contracts

January 14, 2016 Stephen Clark

Orbital ATK and SpaceX won Pentagon contracts worth a combined value of up to $241 million Wednesday in public-private partnerships crafted to hasten the U.S. military’s move away from Russian-supplied propulsion to deliver national security satellites to orbit.

Orbital ATK beats out Aerojet in ULA booster selection

September 22, 2015 Stephen Clark

United Launch Alliance has selected Orbital ATK to provide solid rocket boosters for the company’s next-generation Vulcan launcher, and will switch the workhorse Atlas 5 to the new booster supplier by the end of 2018, officials said Tuesday.