Introducing Electra: Expanding Mission Possibilities with Electric Propulsion

blog

JUL 28 2026

Electra complements Impulse's chemical propulsion line up, enabling customers to choose the best in-space mobility technologies for their mission.

Meet Electra

The first chapter of human space activity has largely been defined by launch. Rockets roar off the pad, payloads reach orbit, and missions officially begin. The next chapter in space will be defined by what happens after launch-moving satellites between orbits, transporting cargo across cislunar space, supporting off-world infrastructure, servicing spacecraft, and enabling entirely new economies beyond Earth.

At Impulse, we've built our company around a simple belief: accelerating humanity's future beyond Earth requires much more than launch alone. It requires a complete in-space mobility architecture-one that gives spacecraft the freedom to move, adapt, and accomplish more throughout their missions.

Today, we're introducing the next step in that vision: Electra, our first electric propulsion (EP) system, purpose-built to expand what's possible for our spacecraft after launch.

Designed, built, and tested entirely in-house, Electra adds highly efficient electric propulsion to our existing slate of high-thrust chemical propulsion engines. When used together, they create more capable spacecraft, giving mission designers greater flexibility while preserving what matters most: the ability to move quickly when timing is critical.

Another Way to Move in Space

One of the biggest constraints on today's spacecraft isn't reaching orbit-it's staying there.

Mission designers often reserve up to half of a spacecraft's chemical propellant simply to maintain its orbit over the life of the mission. That means half of a spacecraft's maneuvering capability is effectively unavailable for mission objectives.

Electra changes that.

If chemical propulsion is a sprinter, electric propulsion is a super-efficient marathon runner. Rather than delivering large bursts of thrust, electric propulsion provides a continuous, highly fuel-efficient push over long periods of time, making it ideal for stationkeeping and other long-duration operations.

For example, allowing electric propulsion to handle stationkeeping, operators can dedicate all of the chemical propellant to the maneuvers that create mission value-rapid orbit changes, responsive operations, and mission flexibility when timing matters most.

Rather than replacing chemical propulsion, Electra complements it, allowing customers to choose the best mobility technologies for their mission.

Built at Impulse Speed

Just over a year ago, we shared that Impulse was exploring electric propulsion as part of our long-term roadmap. Today, Impulse is qualifying Electra flight engines for integration with Mira. From a clean sheet of paper to a firing propulsion system took less than six months. Nearly every element of the system-including the thruster and supporting avionics-was designed, built, and tested in-house. That vertical integration allows us to optimize every component specifically for our spacecraft while maintaining the speed, quality, and responsiveness our customers expect.

The development story reflects the engineering culture that defines Impulse. Our manufacturing team rapidly developed the expertise to fabricate specialized components when traditional suppliers couldn't meet our timeline. Rather than waiting months for outside vendors, our engineers built the capability themselves. That ability to move quickly-from concept to hardware-is one of Impulse's defining strengths.

"The best part of building Electra has been the opportunity to move fast and try new things. We get to turn ideas into plasma in a matter of weeks or months, not years," said Charlie Kelly, Lead Electric Propulsion Engineer at Impulse. "We're still a small team, just a few people, which means every engineer gets to own a significant portion of our EP systems that will redefine the capabilities of Mira and future spacecraft."

"As launch becomes more accessible, the next frontier is enabling spacecraft to do more once they arrive in orbit," said Tom Mueller, Founder, CEO & CTO of Impulse. "Our strategy has always been to develop the mobility technologies needed to support all missions after launch, and electric propulsion is an essential component of that strategy."

Electra represents far more than a new propulsion system-it's another building block in our vision for end-to-end in-space mobility.

Looking Ahead

Electra will make its first in-space demonstration aboard Impulse's GEO Express 1 mission, flying as part of our Caravan 1 mission next year, validating the technology on orbit.

For our customers, Electra means a spacecraft capable of accomplishing more with the same platform.

For our engineering team, it demonstrates that ambitious ideas can move from concept to flight hardware in a matter of months.

And for Impulse, it marks another milestone in building the complete mobility infrastructure that will accelerate humanity's future beyond Earth.

The future of space isn't defined by getting to orbit...it's defined by everything that comes next.