Space Just Got a Fast Pass: Impulse Aims for Same-Day Satellite Delivery too GEO
The journey to geostationary orbit (GEO) is about to get significantly faster, thanks to a new kick stage system developed by Impulse. Traditionally a months-long process, Impulse promises to deliver satellites to GEO in under 24 hours, a capability that could revolutionize both commercial and defense operations in space.
Impulse’s system centers around its Helios kick stage, utilizing a powerful engine called Deneb. A kick stage is a small rocket engine system attached to a larger rocket, providing the final push to propel spacecraft to their intended orbit. Helios is designed to act as a “same day” courier from Low Earth Orbit (LEO) to higher altitude orbits.
This speed is notably valuable for the Department of Defense, which requires rapid maneuvering capabilities in an increasingly competitive space environment. Commercial operators also stand to benefit, gaining faster access to higher orbits for their satellites. Reaching GEO isn’t simply a matter of distance; spacecraft operating there must contend with the high-radiation van Allen belts, dialog latency, and the need for precise positioning.
Impulse is partnering with Anduril to build a demonstration satellite focused on rendezvous and proximity operations – the ability for spacecraft to approach and inspect other objects in orbit. this capability is considered critical by the Space Force for space domain awareness and deterrence. Impulse will supply the spacecraft, named Mira, which had its first flight last year, while Anduril will provide a mission data processor, a long-wave infrared imager, and other software-defined payloads for tracking and high-precision navigation.
The demonstration mission will see Helios ferry the Mira spacecraft to GEO in under a day. Once in position,the mission will aim to capture and analyse images of other space objects,and then autonomously execute precise maneuvers for observation. U.S. officials have described the goal as “maneuvering without regret,” meaning the ability to reposition satellites without risking the mission or wasting fuel.
Several companies have already signed on to utilize the Helios system. Astranis has booked a 2027 mission to launch its microgeo satellites to LEO via a SpaceX Falcon 9 rocket, followed by delivery to GEO in less than 24 hours by Helios. This accelerated timeline is crucial for Astranis, allowing them to speed up activation dates for customers awaiting their satellite broadband services.
Impulse has also secured a multi-launch agreement with France’s Infinite Orbits to utilize a ride-share program called Caravan, transporting multiple satellite servicing spacecraft to GEO. this program, mirroring SpaceX’s ride-share model, aims to reduce costs by allowing companies to share launch expenses. The first Caravan mission is fully booked for 2026.
While recent growth in the space industry has largely focused on LEO and smaller satellites, Impulse believes the next phase will be characterized by expansion into GEO. With its promise of rapid and efficient satellite delivery, Impulse is positioning itself to lead that charge.