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Are you ready to flirt with the edge of space?

Plane Light Propeller Propeller Front Avion 3D

A summer over the Alps

HB-SXA to head to Sion to take up residence “This time, the real adventure begins”. Both Raphaël Domjan and Roland […]

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New conclusive tests ahead of this summer’s record attempt

Back in the air SolarStratos was back in the air in May for a second round of test flights in […]

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SolarStratos headlines at Anheim Electricity Week

‘The Birth of a Dream’ screened in Holland The second round of training flights is underway and in a few […]

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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.