I still remember my disappointment when, at age 14, I first saw the Andromeda galaxy, the most prominent deep-sky object in the Northern Hemisphere.

After an hour of patiently studying the sky and carefully pointing my telescope, I finally saw a strange misty gray stain appear where I expected to see a vibrantly colored disk of light.

Many years later my friend Arnaud Malvache (who also happens to be a researcher in optics and image processing) shared a similar memory with me.
But he also had an idea. What if we used a low-light sensor to progressively intensify the light we see through the eyepiece of a telescope?

We quickly decided to make a prototype of such a device to get a feel for what it could do, and while designing it we added the other features that make the Unistellar telescope so powerful and so unique.

To make astronomy entertaining and enjoyable to everyone, we also decided to make it compact and simple to use, and enable participation in citizen science projects.