The lunar ledger

A global lunar database of objects and activities.

OUR MISSION

The Lunar Ledger Project, launched in 2022, aims to establish a centralized and reliable system for tracking lunar exploration activities. It brings together information from all stakeholders and public sources to create a comprehensive record of missions and operations. By providing a transparent, shared baseline of lunar activity, the Ledger supports coordination, reduces risk, and is fundamental to the safe and sustainable development of the Moon.

This work is grounded in research spanning space law, international norms, and commons governance. Our team and collaborators have published papers that inform the Ledger’s structure and purpose. This body of work demonstrates the need for a trusted, transparent system to document lunar activities — and outlines practical, ethical pathways to build it.

Explore the Research

our founding partners

signatories

A Lunar Ledger enables responsible, cooperative development.

Map of the moon with three blue dots marking specific locations.

Humanity is returning to the Moon, with governments, scientific organizations, and commercial ventures preparing for new opportunities. Over 100 missions are planned by 2030, supported by significant investment and increasing momentum towards a sustained lunar presence.

However, current progress highlights a need for greater transparency and coordination. Clear, reliable information is essential to support safety, effective planning, and responsible growth.

The Lunar Ledger is a collaborative initiative developed to address this need. By providing centralized, verified mission data globally, it enables stakeholders across sectors to reduce risk, improve coordination, and contribute to a sustainable lunar environment.

Participate in the Lunar Ledger to support informed decision-making and shared success on the Moon.

submit your interest in sharing mission data

Database documentation

value for every stakeholder

Commercial lunar actors

Reduce risk, improve planning, and increase operational efficiency with centralized, neutral, and verified mission data.
Government and state actors

Upholding privacy, transparency, and global alignment through collaborative governance and strong regulatory partnerships.
academics and Researchers

Leverage mission intelligence to identify cost-sharing and payload opportunities, accelerating shared deployments.

JOIN US AND SET THE STANDARDS

"A lunar Registry could work as an essential tool for coveted locations where we will see increased activities, such as the Peak of Eternal Light or the Lunar South Pole."

Jonathan McDowell

Astronomer and Astrophysicist at the Harvard–Smithsonian Center

we’re committed to Building with the community.

GET INVOLVED

We’re forming a diverse group of strategic advisors, collaborating with beta users to inform product development, and partnering with initial data providers.

The Ledger will remain open and neutral, guided by responsible community stewardship. Our commitment is building trust and lasting value through transparency, collaboration, and engagement.

video Introduction to the lunar ledger