Research papers
Ideas, tested against the sky.
An idea earns trust when its status, contributors, and limits are clear. Here are the papers I can share publicly today, each with its sources.
Space Debris Credits
A proposed way to encourage better environmental stewardship in orbit through voluntary participation and market incentives.
- Contributors
- Maxime Kadri and Anna Shishkina
- Paper title
- Space Debris Credits: A Market-Based Framework for Governance and Environmental Stewardship in Orbit
- Presentation
- 19 February 2026, 12th Annual Space Traffic Conference at UT Austin
- Affiliation
- Celestia Dynamics, as listed on the paper
- Status
- Open access under CC BY 4.0; open for peer review
What is the idea?
Objects left in orbit can create risks for future space activity. Space Debris Credits explores how a voluntary credit framework could reward actions that reduce debris-related harm. The proposal examines incentives and governance; it is not an existing regulatory mandate.
The paper illustrated its main claims with synthetic data. A follow-up working paper tests them on 18,036 real objects in low Earth orbit: among derelicts, 50 objects hold 46% of the risk measure, and removing the ten highest gives about 80 times the reduction of removing ten at random.
© 2026 Maxime Kadri and Anna Shishkina. Both authors release the paper under CC BY 4.0.
Compost Energy
A four-chamber home composter that captures microbial heat and returns enriched fertiliser to the soil. The numbers did not add up for homes, so the design moved to farm scale. Drawings, a simulation and an explainer video.
- Author
- Maxime Kadri
- Started
- 2024; the provisional patent has lapsed and is published openly
- Status
- Design and simulation; not yet built and measured
Future papers will appear here when they are ready to share, with labels that distinguish a published paper, a proposal, and an aspiration.