Date of Award


Document Type


Degree Name

Master of Science (MS)


Aerospace, Physics, and Space Sciences

First Advisor

Markus Wilde

Second Advisor

Andrew Aldrin

Third Advisor

Brian Kish

Fourth Advisor

Daniel Batcheldor


This thesis summarizes a conceptual design for an Earth – Mars Cycler vehicle designed to transfer astronauts between Earth and Mars. The primary objective of the design study is to accommodate the crews’ needs and to estimate the overall mass and power required during Earth – Mars transfer. The study defines a concept of operations and system functional requirements and discusses the systems breakdown and subsystems design analysis. Systems developed for the cycler vehicle is designed primarily for the S1L1 cycler trajectory. The initial sizing of cycler subsystems is based on reference data from historical human spaceflight. The study performed for subsystems requirements is based on one-way trip (~154 days) to Mars. The study also addresses accommodations and life support requirements. The study does not include any detailed discussions related to the process of the vehicle assembly and launch from the ground.


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