From Grounded Beginnings to Lunar Innovations: My Journey in Space Engineering

Embracing the Unexpected Path to Aerospace

Building a Career Beyond Earth: Engineering for Spacecraft Systems

The SLIM Mission: Pioneering High-Precision Lunar Landings

Engineering the Future: Perspectives on Human Habitation on the Moon

Inspiring the Next Generation: The Importance of Strong Engineering Fundamentals

My Journey into Space Engineering: From University to Lunar Missions

I didn’t set out to work in space. My journey began like many others—in the halls of a Japanese university, where I studied general engineering without a clear plan to specialize in aerospace or spacecraft systems. At that time, my focus was simply on building a robust technical foundation for my career. Little did I know, a chance conversation would ignite a passion for space technology that would shape my career.

An Unexpected Path

During my job search, I had an enlightening discussion with a senior colleague at Mitsubishi Electric. He highlighted their groundbreaking work in satellite systems, and it dawned on me that my engineering skills could contribute to something as ambitious and complex as space technology. The allure of working on cutting-edge systems captured my imagination, and I knew I had to be a part of that world.

Joining Mitsubishi Electric

I joined Mitsubishi Electric as an engineer specializing in satellite propulsion systems—the engines that dictate a spacecraft’s movement and orientation in the vastness of space. From day one, my role blended detailed design work with hands-on responsibilities like procurement and support for manufacturing and fueling systems. Unlike many desk-bound jobs, this role took me to various manufacturing sites, test facilities, and even rocket launch locations. Witnessing a rocket launch, knowing I played a part in creating the systems that made it possible, is an exhilarating experience I will never forget.

Adapting to Project Phases

As with any engineering role, my responsibilities evolved with each project phase. Initially, I focused on system design and analysis, ensuring the architecture met performance requirements. As projects progressed, my attention shifted to integration and testing—one of the most critical parts of any mission. Every component must function reliably under the extreme conditions of space.

Communication and collaboration are vital in spacecraft development. Spacecraft are never the product of a single organization; they require a symphony of efforts from customers, suppliers, and partners. Coordination across teams helps to build a cohesive and successful end product.

A New Perspective in the UK

Today, I am based in the UK at Mitsubishi Electric’s European Purchasing Centre. My role continues to be centered around spacecraft engineering, but now with an expanded scope focused on international suppliers and partners. This position has broadened my perspective, highlighting how collaborative efforts across regions are essential as missions grow in complexity.

The SLIM Mission: A Leap in Lunar Exploration

One of my most exhilarating projects was contributing to the Smart Lander for Investigating Moon (SLIM) mission, led by JAXA. In my role as a systems engineer, I helped ensure all subsystems functioned seamlessly together as a complete spacecraft. Systems engineering demands a holistic view; understanding how each component interacts with others is crucial to guarantee overall system reliability.

Unlike previous missions that aimed to land in broader areas of the Moon, SLIM focused on achieving high-precision landings within targeted zones. This capability is vital for future missions aiming to explore specific geological sites or build infrastructure on the lunar surface.

Innovative Propulsion Systems

Technical challenges in the SLIM mission sparked innovative solutions, particularly in propulsion. A key objective was to reduce the spacecraft’s mass without compromising performance. The propulsion system employed a specific combination of fuel and oxidizer to generate high thrust, optimizing balance between weight and capability—an integral consideration in spacecraft engineering.

Paving the Way for Future Exploration

Projects like SLIM redefine technological boundaries and open doors to new possibilities. High-precision landing will be crucial in the next generation of space exploration—be it scientific missions, robotic operations, or future human activities beyond Earth. The lessons and advancements from SLIM will directly feed into projects like the Martian Moons exploration (MMX) mission.

Looking ahead, the prospect of human habitation on the Moon excites me most. Turning this vision into reality will require ultra-reliable landing systems, advanced propulsion, and resilient infrastructure—areas where engineers will lead the charge.

Conclusion: The Curiosity-Driven Journey

I often share my story with students and early-career engineers to illustrate an important point: you don’t need to specialize in space from the very beginning. What matters are strong engineering fundamentals, a curious mind, and a willingness to embrace new challenges.

I never imagined I would one day contribute to lunar missions, but being part of a field poised to expand human presence beyond Earth is both a privilege and a source of endless motivation.

—Tanaka-san
Lunar Systems Engineer, Mitsubishi Electric