Dare the dream

The low-carbon journey to space

Come aboard Céleste and reach for the stars

Your journey will be the most groundbreaking adventure one can only imagine today.  At Zephalto, we redefine space travel standards through our environmental commitment and once-in-a-lifetime experience. We offer low-carbon journeys to the stratosphere, allowing you to reach 25km above Earth.

Céleste above earth

Your spaceship

At the edge of space, Céleste invites you to experience an extraordinary journey in a minimalist setting designed by the architect Joseph Dirand. Once inside, you'll find a condensed version of French refinement in three spacious cabins that allow you to see the Earth from a new angle.

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1

st

Become the pioneers of stratospheric travel. Soar into space by 2025 and make your historic flight.

6

guests

Enjoy an exclusive, personalized experience in unparalled comfort and safety.

7

sqm

The largest wide-angle windows overlooking Earth, offering a 1400 km panorama that will unfold before your eyes.

20

sqm

The most spacious space capsule, adorned with three private cocoons, where every square meter unveils its prestige.

26.6

kg co2

Amount of CO2 per flight and per person. Equals a car journey from Paris to Lille (224 km)

25

km

Above Earth and 98% of the atmosphere. In the dark of space.

6

hrs

The total duration of your flight to admire Earth, because journey is the destination.

11

patents

Capsule certified by EASA to the highest safety standards. A technological masterpiece, developed to the same exacting standards as civil aviation.

1. Boarding

Aboard the capsule, take off from one of our unique spaceports, specially designed to welcome you.

2. Ascent

During one hour and a half, admire the panorama and beauty of one of the most wonderful places on Earth at an elevation speed of four meters per second.

3. Climax

In the stratosphere for three hours, at an altitude of 25 kilometers, be amazed by the Overview Effect. The highlight of the journey. A moment that changed the lives of many astronauts.

4. Descent

For one hour and a half, keep contemplating while slowly returning back to planet Earth.

5. Back on Earth

After landing, share your experience and officially join our space travelers community.

Earth view from Céleste

Bringing science to stratosphere

Zephalto has become a key player in the exploration of the stratosphere. In close collaboration with the French space agency (CNES) and the Occitanie region, science is on board for every journey: each manned flight represents a unique opportunity to collect essential data to understand the atmosphere, monitor climate change, or observe Earth and Space. By paving the way for regular measurements in the stratosphere, Zephalto makes a significant contribution to research and provides unprecedented conditions for conducting numerous tests at very high altitudes.

Roadmap

Roadmap

Roadmap

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2016

2016
Zephalto created by Vincent Farret d'Astiès.

Zephalto created by Vincent Farret d'Astiès.
Zephalto created by Vincent Farret d'Astiès.

2017

2017
Gathering a team.
Gathering a team.Gathering a team.

2018

2018
First crewed flight in balloon at low altitude​.
First crewed flight in balloon at low altitude​.First crewed flight in balloon at low altitude​.

2019

2019
Designing a reusable envelope.
Designing a reusable envelope.Designing a reusable envelope.

2020

2020
First crewed flight with a reusable envelope.
First crewed flight with a reusable envelope.First crewed flight with a reusable envelope.

2022

2022
Capsule design and engineering. Several flight tests conducted by Zephalto.
Capsule design and engineering. Several flight tests conducted by Zephalto.Capsule design and engineering. Several flight tests conducted by Zephalto.

2023

2023
Design and architect reveal. First manned flight in the stratosphere.
Design and architect reveal.
First manned flight in the stratosphere.Design and architect reveal.
First manned flight in the stratosphere.

2024

End of 2024
First Zephalto flights open to the public.
First Zephalto flights open to the public.First Zephalto flights open to the public.

2026

2026
Spend one night on the stratosphere ! First long-duration flights for Zephalto.
Spend one night on the stratosphere ! First long-duration flights for Zephalto.Spend one night on the stratosphere ! First long-duration flights for Zephalto.

Your life-changing experience starts now.

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Hear from our ambassadors

Vincent Farret d’Astiès

“My dream : travelling to the stars, in harmony with the elements.”

Vincent Farret d’Astiès
Founder & Chief Pilot
Sébastien Roubinet

"Zephalto, like a sailboat meeting the stars."

Sébastien Roubinet
Explorer

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