Dare the dream

Embark on the most pristine spaceship of the 21st century

The low-carbon journey to space in a stratospheric balloon. Your space experience, designed by teams of top-tier engineers in collaboration with worldwide experts, draws on the French Space Agency’s (CNES) 60-year-experience of balloon flights. Your journey, a life-changing experience in harmony with nature, will be the most groundbreaking adventure one can only imagine today.

Céleste above earth

Your spaceship

Our pressurized capsule itself is a state-of-the-art object providing you with the best comfort and safety conditions. Built by the best technical teams, and designed by a world-famous architect, renowned for his work on pristine designs and high-end interiors, our capsule will allow you to fully appreciate this extraordinary travel.

Design and architect soon to be revealed.

Capsule to be revealed soon
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1

st

Be the first to open access to stratosphere and to onboard as space guests in 2024.

6

seats

The most exclusive space journey. Our two pilots will take care of your comfort and safety.

7

sqm

The largest window on the market. Providing you with the widest view from the stratosphere.

20

sqm

The most spacious spaceship and the most precious square meters in space.

26.6

kg co2

The lowest amount of CO2 needed for a space flight. As little as the production of a pair of denim trousers.

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

Upcoming patents. For the most advanced and, above all, most secure space flight.

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

Discover new horizons

At Zephalto, we are redefining space flights standards. Fly high with us, be amazed by our planet’s beauty and be involved in the global effort to preserve it. More than just an eco-friendly travel to space, Zephalto is a global scientific adventure aimed at supporting worldwide environmental research.

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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