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Are you ready to flirt with the edge of space?

Plane Light Propeller Propeller Front Avion 3D

SolarStratos on track after successful return to flying

In the air The first round of test flights this year has gone as per the technical team’s plan! Raphaël […]

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SolarStratos: flying again!

SolarStratos kicks off its first flight campaign of the new year Spring is in the air and with the warmer […]

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Stratosphere, science, sustainability: the immense potential of SolarStratos

SolarStratos – an ideal platform for environmental research carbon-free image capture Flying an airplane in the stratosphere provides a unique […]

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Plane Light Propeller Propeller Front Avion 3D

The challenge

Travelling to the edge of the planet using only renewable energy

The aim is to protect our planet’s climate from greenhouse gases by demonstrating that concepts and projects that seemed inconceivable a short time ago are now possible with the technologies available today.

The plane

Stratospheric solar airplane

The plane

A team of passionate and highly specialised people

Multi-skilling is a must in such an experimental project. The team consists of a mix of aeronautical engineers, pilots, builders and others.


SolarStratos is supported by numerous Swiss companies

The team aims to be international, but is committed to its national roots.

Be part of it

Experience this 21st century eco-exploration

By becoming a member of the “SolarStratos” club, you help promote and support our challenge.