Neutron is a partially reusable medium-lift two-stage rocket under being developed by Rocket Lab. It has been scheduled to launch in 2025, but might slip to the further date.

This market will be resolved when Neutron rocket launches for the first time. For the purposes of this question, "launch" should involve the countdown reaching 0 and the rocket leaving the pad. I.e. Astra sideways launch would count, but an explosion right on the pad wouldn't.

I do not bet on my own markets.

If there is sufficient interest in this market, I'll add further markets about other milestones for Rocket Lab rockets.