Nuclear Energy in Space Exploration

Research question

Should nuclear energy be used in advancing space exploration, and how should its technical advantages be weighed against safety and ethical concerns?

Background

This project was completed for the UCL Undergraduate Preparatory Certificate research project. It was submitted on 2 May 2024 and selected by faculty as a model project for future cohorts. The essay examined spacecraft power-generating systems and focused on how nuclear systems may support long-duration and deep-space missions.

Mathematical model or method

The project was built around a comparative research method rather than a mathematical model. It treated spacecraft power generation as a trade-off between operational lifetime, power output, reliability, launch and re-entry risk, radiation management, and ethical responsibility.

Methods

The project used source-based academic argument rather than laboratory or computational simulation. It compared radioisotope power systems, including radioisotope thermoelectric generators, and fission power systems against chemical batteries and solar power. The comparison focused on power output, operating lifetime, reliability in deep-space conditions, launch and re-entry risk, radiation protection, and ethical responsibility.

Implementation

The final output was a formal UPC research essay with references, figures, and a reflective component. I am not publishing the full assessed DOCX directly on the website; the public project page records the research question, argument structure, and what the work demonstrates.

Results

The essay argued that nuclear power systems can be technically valuable for long-duration and deep-space exploration because they offer higher power output, longer operating life, and greater reliability than solar or chemical systems in some mission contexts. It also argued that these advantages do not remove the need for careful launch safety, radiation shielding, proliferation awareness, and ethical evaluation.

Validation

The project was validated through the UPC academic-writing process: topic narrowing, tutor feedback, source selection, formal referencing, and final faculty assessment. Its selection as a model project indicates that it was useful as an example of UPC research writing, not that it is a peer-reviewed engineering result.

Limitations

The project is an academic essay, not an original engineering design or policy paper. It does not calculate mission-specific reactor mass, shielding requirements, thermal efficiency, launch risk probability, or full life-cycle risk. The public version also avoids reproducing the full assessed submission.

What I learned

The project taught me how to narrow an initially broad topic into a researchable question, compare technical systems through evidence, and balance engineering benefits against social and ethical constraints. It was also an early step in learning how to write a structured academic argument in English.

Future work

Future extensions could turn the essay into a technical note comparing specific mission profiles, power budgets, shielding assumptions, and risk frameworks for radioisotope and fission systems.