Neutron

Rocket Lab medium-lift reusable launcher in development.

Neutron is an upcoming medium-lift two-stage launch vehicle under development by Rocket Lab, capable of delivering up to 13,000 kg to low Earth orbit. It focuses on the megaconstellation satellite delivery market and has a partially reusable configuration. The first launch is now expected in 2026, with a contract signed for a test flight supporting the U.S. Air Force's cargo transportation concept.