Rocket 3.3 was Astra's final Rocket 3 configuration and the company's first version to reach orbit. The compact two-stage LOX/kerosene launcher used five electric-pump-fed Delphin engines on its first stage and one pressure-fed Aether upper-stage engine. Five vehicles flew from 2021 through 2022, including two successful orbital launches.
Future launches and major activity directly linked to this vehicle family.