Abundant energy

from Earth to the asteroid belt

Antares R1

A military-first rapidly deployable microreactor designed for transportability, resilience, and autonomy. Built for austere and remote terrestrial applications and adaptable to space-based power needs.

Energy anywhere

Rugged and robust

The R1 reactor is designed to fit on standard 463L pallets or a single CONEX container on air and ground military cargo platforms. Once onsite, it can be deployed with readily available military-grade equipment.

Kilowatt-Scale Special Purpose Reactor

300 kWe

Shielding

Built-in tungsten, titanium carbide, and boron carbide minimize exclusion zone and increase the speed of deployment

Heat Transfer

Sodium heat pipes provide passive and redundant heat removal without moving parts to maximize reliability

Reactivity Controls

Automated control drums and boron carbide shutdown rod developed from space reactor control systems

Core

Combination of HALEU TRISO and graphite moderator and reflector is high technology readiness, well-characterized, and maximizes safety

Resilient

TRISO encapsulates every fuel particle in silicon carbide. Sodium heat pipes provide redundant, self-contained heat transfer from the core.

Passively safe

Highly Automated

Continuous energy with no sustaining supply chain for 3 years. Automated controls, power management, and distribution with no specialized workforce.

3+ year autonomous operation

Reliable

Low-pressure closed nitrogen Brayton cycle maximizes reliability and minimizes maintenance for deployment anywhere.

300 kWe