July 30, 2026

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NASA Prepares CAPSTONE 02 Mission to Test Next-Generation Lunar Navigation Technologies

NASA Prepares CAPSTONE 02 Mission to Test Next-Generation Lunar Navigation Technologies

NASA is moving forward with a new technology demonstration mission aimed at advancing the infrastructure needed for long-term exploration around the Moon. The agency’s CAPSTONE 02 mission will test autonomous spacecraft navigation, rendezvous operations, and cislunar communications, helping pave the way for future Artemis missions and the development of a sustained human presence in lunar orbit.

Scheduled for launch in 2027, the mission will deploy two small spacecraft that will operate together in lunar orbit, demonstrating capabilities designed to support future crewed and robotic missions beyond Earth.

CAPSTONE 02 Expands on the Original Mission

CAPSTONE, short for Cislunar Autonomous Positioning System Technology Operations and Navigation Experiment, made history as the first U.S. commercial mission to reach the Moon and the first spacecraft to successfully operate in a near rectilinear halo orbit. This highly stable orbit is maintained through the combined gravitational influence of Earth and the Moon.

The original mission validated autonomous navigation, communications, and networking technologies while providing NASA with valuable operational experience in cislunar space.

CAPSTONE 02 builds on those achievements by shifting its focus from orbit validation to testing advanced operational capabilities that will support future lunar transportation systems and orbital infrastructure.

Testing Advanced Spacecraft Operations Around the Moon

A major objective of CAPSTONE 02 is to demonstrate sophisticated rendezvous and proximity operations in cislunar space. These maneuvers are significantly more complex than similar operations performed in low Earth orbit because spacecraft must navigate under the gravitational influence of both Earth and the Moon.

The mission will use two identical spacecraft, each weighing approximately 400 kilograms (882 pounds), built by Terran Orbital Systems, Inc. During the mission, controllers will conduct multiple rendezvous exercises, formation-flying demonstrations, and loitering operations to better understand spacecraft behavior in three-body orbits.

These demonstrations are expected to help NASA refine techniques that astronauts may eventually rely on when docking Orion spacecraft with lunar landers before traveling to and from the Moon’s surface.

Autonomous Navigation Demonstrations

The spacecraft will use a combination of ground tracking data, optical sensors, and observations of celestial bodies to locate and approach one another in lunar orbit.

Each vehicle will be capable of switching between “chaser” and “target” roles, allowing engineers to evaluate numerous operational scenarios under varying conditions. NASA says these tests are critical because navigation performance during lunar rendezvous cannot be fully replicated in Earth-based simulations.

New Software and Imaging Technologies

Beyond spacecraft maneuvers, CAPSTONE 02 will serve as a test platform for three NASA-developed navigation software suites.

The software will collect operational data during the spacecraft’s low-energy transfer trajectory from Earth to lunar orbit. The mission will also carry an optical imaging payload developed by Lawrence Livermore National Laboratory to support navigation demonstrations while capturing images of the Moon.

In addition, CAPSTONE 02 will continue advancing the Cislunar Autonomous Positioning System originally demonstrated during the first CAPSTONE mission. The technology enables spacecraft to determine their positions relative to one another without depending entirely on Earth-based tracking systems.

NASA believes these technologies can automate routine navigation tasks, reduce reliance on ground communications, and improve coordination between multiple spacecraft operating around the Moon.

Supporting Future Lunar Infrastructure

The agency says CAPSTONE 02 is also designed to demonstrate a cost-effective and scalable mission model. The spacecraft are intended for rapid deployment while supporting technologies that can be reused in future exploration missions.

“This mission represents an important step in the maturation of cislunar capabilities,” said Sean Fuller, Moon Base CAPSTONE manager. “By expanding on the lessons learned from CAPSTONE to demonstrate increasingly sophisticated operational concepts, CAPSTONE 02 lays the foundation for lunar infrastructure and commercial services that support Artemis, Moon Base, and future missions to deep space.”

NASA has emphasized that advancing human exploration requires repeated technology demonstrations conducted in partnership with industry. Flight testing allows engineers to validate complex systems in real operating environments before they become part of future crewed missions.

Looking Ahead

CAPSTONE 02 is funded by NASA’s Human Spaceflight Mission Directorate with support from the Research and Technology Mission Directorate. The mission is managed by the Small Spacecraft & Distributed Systems program at NASA’s Ames Research Center in California’s Silicon Valley and is funded through a Small Business Innovation Research Phase III contract.

As NASA continues preparing for future Artemis missions, CAPSTONE 02 is expected to provide valuable operational experience and validate technologies that could become essential for long-term lunar exploration and future deep-space missions.