Powering The Final Frontier

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Our Mission

1 Billion Humans

in Space

Our vision is simple. To become a multi-planetary species, humanity needs compact, long-duration, off-grid power.


Nanoscale atomic energy is the solution. No other form of power can endure the 354-hour lunar night, generate rocket fuel on the Martian surface, or power mining in the asteroid belt – far beyond the range of solar or batteries.


While we look to the stars, our plan starts on Earth. Our flagship commercial system STARFALL, a terrestrial reactor, is designed to demonstrate that atomic energy can be generated in a form factor small enough to deploy anywhere.


STARFALL will be one small step for man towards the energy system of the future. Join us.

STARFALL 1, our first reactor, is being designed to produce radioisotopes, addressing a critical and growing market while validating key steps along the technical roadmap to our deployable power system.

Energy for Any Environment

Years of Power

Years of continuous operation without refueling; at the end of life, modules are returned for recycling or secure disposal. 

40+ kWe

High-density, scalable output to support critical systems, vehicles, and infrastructure.

Deployable Form Factor

Our ultra-compact design makes it possible to deliver resilient power to the world’s most remote and hardest-to-reach sites.

01

Remote Industrial and Scientific

For frontier research and exploration STARFALL provides reliable energy independence. Its compact form provides a power backbone for work in deserts, arctic zones, and remote locations far beyond the grid. Companies can maintain operations and safety systems with confidence, achieving energy independence in locations where traditional infrastructure or renewables alone cannot suffice.

02

Humanitarian & Disaster Relief

STARFALL is being designed to support rapid deployment in emergencies, delivering stable, life-sustaining power when traditional grids are down. In the aftermath of hurricanes, wildfires, or earthquakes, it can be rapidly deployed to restore power for hospitals, emergency shelters, and grid backup, ensuring that medical equipment, communications networks, and essential services stay online.

02

Humanitarian & Disaster Relief

STARFALL is being designed to support rapid deployment in emergencies, delivering stable, life-sustaining power when traditional grids are down. In the aftermath of hurricanes, wildfires, or earthquakes, it can be rapidly deployed to restore power for hospitals, emergency shelters, and grid backup, ensuring that medical equipment, communications networks, and essential services stay online.

02

Humanitarian & Disaster Relief

STARFALL is being designed to support rapid deployment in emergencies, delivering stable, life-sustaining power when traditional grids are down. In the aftermath of hurricanes, wildfires, or earthquakes, it can be rapidly deployed to restore power for hospitals, emergency shelters, and grid backup, ensuring that medical equipment, communications networks, and essential services stay online.

03

Expeditionary

We believe in the potential of compact atomic power to support mobile operations in remote or contested terrain. It keeps radar systems, communications gear, and life-support equipment running without the burden of fuel convoys, and advanced shielding and safety systems ensure energy resilience.

03

Expeditionary

We believe in the potential of compact atomic power to support mobile operations in remote or contested terrain. It keeps radar systems, communications gear, and life-support equipment running without the burden of fuel convoys, and advanced shielding and safety systems ensure energy resilience.

03

Expeditionary

We believe in the potential of compact atomic power to support mobile operations in remote or contested terrain. It keeps radar systems, communications gear, and life-support equipment running without the burden of fuel convoys, and advanced shielding and safety systems ensure energy resilience.

04

Maritime

Compact atomic systems could one day support maritime exploration and energy needs. Atomic power can deliver energy for undersea mining and exploration, charging of autonomous craft, and advanced naval systems — extending mission duration and eliminating the need for surfacing or constant resupply.

04

Maritime

Compact atomic systems could one day support maritime exploration and energy needs. Atomic power can deliver energy for undersea mining and exploration, charging of autonomous craft, and advanced naval systems — extending mission duration and eliminating the need for surfacing or constant resupply.

04

Maritime

Compact atomic systems could one day support maritime exploration and energy needs. Atomic power can deliver energy for undersea mining and exploration, charging of autonomous craft, and advanced naval systems — extending mission duration and eliminating the need for surfacing or constant resupply.

05

Off-World

The STARFALL terrestrial system will prove that atomic energy can deliver compact power on Earth. The work we do on this system will lay the future foundation to take us to the stars. Atomic power enables long-duration expeditions and permanent installations beyond Earth. It is the only infrastructure for making human life possible in the final frontier.

05

Off-World

The STARFALL terrestrial system will prove that atomic energy can deliver compact power on Earth. The work we do on this system will lay the future foundation to take us to the stars. Atomic power enables long-duration expeditions and permanent installations beyond Earth. It is the only infrastructure for making human life possible in the final frontier.

Frequently Asked Questions

What technology enables STARFALL?

How long can STARFALL operate?

What power output does STARFALL deliver?

© Mersenne LLC

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Mersenne is currently developing STARFALL, a commercial terrestrial power system. While Mersenne’s long-term vision includes potential applications for mobile and space power, STARFALL is not a space-based or defense reactor and is not under ITAR jurisdiction. All technical data is restricted and subject to U.S. export control laws.

Mersenne is currently developing STARFALL, a commercial terrestrial power system. While Mersenne’s long-term vision includes potential applications for mobile and space power, STARFALL is not a space-based or defense reactor and is not under ITAR jurisdiction. All technical data is restricted and subject to U.S. export control laws.