We are Stellar

Welcome to Stellar Space Studies.
We are a small startup based in Toulouse, France (formerly known as Géode & Cie). We work in the space industry, performing studies and processing data for Earth observation
 missions. Learn more about us and what makes us different from the rest. And about the many reasons why you will love to work with us.


We love what we do.
We are passionate about it. We think there’s no better way to do good work than to love what we’re doing. We love what we do, and this is why we do it well.


Keep it simple.
We work for big companies but we have a small startup mentality. W
e are flexible. Every problem has a solution. We like to keep it simple, and we like to make your life easy. 


Less talk, more action.
We like fast, clean and quiet work. We have a team of bright scientists and developers at your service, who long to understand your needs, to solve your problems and to keep you satisfied.

Long-term partnership

We are long-term oriented.
Like friendship and good wine, the best qualities develop and flourish over time. We are patient, persistent and we stick through difficulty. We deeply value partnerships that stand the test of time. We know that it sometimes takes 10 years of work to make an overnight success.

What do we do?

We process data from Earth observation missions. We are fond of science, mathematics and coding. We are experts in the calculation of the Earth’s gravity field from space, with over 12 years of experience in orbit calculation, data processing and system inversion. We are also excellent developers. Since we handle a lot of data, we like to build efficient tools that turn difficult tasks into a smooth and easy experience. We are experts in creating interactive tools for data visualization. 

Space geodesy

Our team has over 12 years of experience in calculating Earth's gravity field from the GRACE satellite mission. Working for the French Space Agency, CNES, we are among the very few teams in the world who have the theoretical knowledge and the practical experience to do those calculations. And now, after many years of GRACE success, we are excited about the GRACE Follow-On mission, which is just about to deliver its first dataset. Why do we calculate Earth's gravity field?

  • For space science and orbit calculation. The space industry needs accurate and up-to-date gravity field models in order to calculate the precise orbits of satellites.
  • For Earth’s climate and environment. You might not know about this yet, but gravity allows us to see the movements of water on Earth. Floods, droughts, monsoons, ice melt, ocean level variations, create small variations in the gravity field which can be measured by satellite missions. Gravity is therefore a unique and fascinating tool to monitor climate and the water cycle on Earth.
Learn more

Data visualization

We process and produce a lot of data. Quantities of it. But we also like to know what we are doing. Therefore, we need smart tools to analyze our data and exploit our results. At some point we really felt the need for a nice, powerful, graphical user interface, that would make our life easy, so we could focus on our main interest, and get exactly what we wanted with one click of a mouse. We like to invest time and efforts today in order to save time and efforts tomorrow. We also like when things work perfectly with just one click of a mouse. Maybe you feel the same about your own data. We have good news for you. We can help. We build great interactive tools, and we love doing it.

  • Intuitive and user-friendly
  • Fast and efficient
  • Comprehensive
  • Beautifully designed
  • Universally praised by users
Learn moreTry it yourself

Why working with us?

Why this could be the perfect match. And the start of a long story.

As a client

You like to work with a young, dynamic, team. You’re looking for the right partner that will be happy to serve you, to advance your project and who will go the extra-mile for you. Stellar is there for you.

As an employee

You’re smart, you’re kind, you love science, mathematics, coding, and you just don’t see yourself as just another anonymous number doing paperwork in a big company. You like to make a difference. You like to serve others. Stellar is the place for you.

As a consultant

You’re a senior, and society has just decided to put you to retirement. But you just hate the idea of retirement. We value your life-long experience and we love intergenerational cooperation. We love to match the wisdom of the old with the strength of the young. You’re still full of ideas, your mind is always busy, and you still have a lot to give. Get in touch, and let’s write your next chapter together.

Get in touch

You have a project, an idea, a question? You would like to learn more, or just get in touch for a coffee? We would love to hear from you. Send us an email and we’ll get in touch. And who knows, it may be the start of a long story.

Get in touch


“Simplicity is the ultimate sophistication”

Leonardo Da Vinci

“I find that the harder I work, the luckier I get”

Samuel Goldwyn

“Genius is one percent inspiration and ninety-nine percent perspiration”

Thomas Edison

“Kindness is the language which the deaf can hear and the blind can see”

Mark Twain

“Quality means doing it right when no one is looking”

Henry Ford

“Whenever you find yourself on the side of the majority, it is time to pause and reflect”

Mark Twain

“The secret of getting ahead is getting started”

Mark Twain

“When someone does something good, applaud. You will make two people happy.”

Samuel Goldwyn

“If you love life, don't waste time, for time is what life is made of”

Bruce Lee

“Fortune favors the prepared mind”

Louis Pasteur

“Those whose work and pleasures are one are fortune’s favorite children”

Winston Churchill

“Never give up. Today is hard. Tomorrow will be worse. But the day after tomorrow will be sunshine.”

Jack Ma

“Stay hungry, stay foolish”

Steve Jobs