Overview

• Impulse plans to deliver three metric tons to the lunar surface per mission, with initial flights targeted for 2028 and two landings envisioned that year for up to six tons total.
• Helios would carry the lander from low Earth orbit to low lunar orbit in about a week, using a launcher‑agnostic architecture without in‑space refueling.
• The lander’s engine will use storable nitrous oxide and ethane propellants derived from the Saiph thrusters on Impulse’s Mira spacecraft.
• Development costs and mission pricing were not disclosed, and the schedule depends on Helios debuting no earlier than late 2026 and reaching routine flight by 2028.
• Impulse positions the service for midsize payloads between CLPS-class and very large systems, entering a market that includes Blue Origin’s Blue Moon Mark 1, which can land about three tons and was selected to carry NASA’s VIPER on its second mission in 2027.