Sustainable satellite design: mitigating optical reflectivity to protect astronomical observations

Satellites are transforming modern society by enabling global communication, navigation, climate monitoring, and disaster response. Yet, the rapid growth of satellites is creating unintended environmental consequences. Bright satellite trails now interfere with astronomical observations, threatening major international facilities such as the Vera C. Rubin Observatory. At the same time, concerns are growing about the broader environmental footprint of space activity.

This fully funded, match-funded PhD (in collaboration with Surrey NanoSystems Ltd.) offers a unique opportunity to work at the forefront of sustainable space research.

The project will focus on reducing satellite brightness using advanced ultra-black coatings, including Vantablack® 310. The student will contribute to the UK’s first in-orbit test of this coating and will combine:

• Laboratory optical characterisation of advanced materials
• Orbital modelling of satellite brightness
• Ground-based photometric monitoring of satellites
• Development of predictive tools for sustainable satellite design.

The successful candidate will work at the interface of astrophysics, materials science, and space engineering, gaining interdisciplinary expertise highly sought after in both academia and the space industry. The project is embedded within the Surrey Space Institute and offers strong academic supervision alongside industrial mentorship and access to state-of-the-art facilities.

We are seeking a highly motivated candidate with a strong interest in space science, sustainability, and interdisciplinary research.

Applicants should have a degree in Physics, Astronomy, Astrophysics, Space Engineering, Materials Science, or a related discipline.

Essential:

• Strong quantitative and analytical skills
• Experience with scientific programming (e.g. Python or similar)
• Ability to work independently and as part of a team
• Clear written and verbal communication skills.

Desirable:

• Background in astronomy, orbital mechanics, or space systems
• Experience with computational modelling or optical physics
• Interest in sustainable space technologies.

We welcome applications from candidates enthusiastic about interdisciplinary work and engagement with both academic and industrial research. Applicants from underrepresented backgrounds in physics and engineering are strongly encouraged to apply. Candidates who may not meet every criterion but can demonstrate strong potential are encouraged to apply.

Open to any UK or international candidates. Up to 30% of our UKRI-funded studentships can be awarded to candidates paying international rate fees. Find out more about eligibility.