ATK – Spaceflight Now

August 6, 2026

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Orbital ATK targets resumption of Antares launches in March 2016

February 20, 2015 Stephen Clark

Space station resupply missions launched from Virginia are set to resume in March 2016, after Orbital ATK integrates newly-built rocket engines into the Ukrainian-made booster stage of the company’s commercial Antares rocket and puts it through an on-pad test firing in January.

Antares rocket’s enhanced upper stage debuts Tuesday

October 27, 2014 Stephen Clark

An upgraded Castor 30XL upper stage motor will provide the Antares rocket with an extra boost during launch with supplies and experiments for the International Space Station, a critical upgrade Orbital Sciences says will ensure it meets contractual cargo delivery requirements.