Long-term vision · In development

Photon
high-altitude pseudo-satellite

A solar-powered aircraft designed to stay in the stratosphere for weeks at a time — persistent Earth observation and communications, closer than any satellite, longer than any aircraft.

18–20 km
Operating altitude
10–15 m
Wingspan
2–3 kg
Payload capacity
Photon HAPS render

Satellite persistence, aircraft flexibility

Photon is built to loiter above a target area for days or even weeks — a flexible, cost-effective alternative to satellites for remote sensing, atmospheric research, disaster monitoring and secure communications.

Multi-week

Designed for continuous solar-powered operation at 18–20 km altitude.

Tactical-sized

Launchable rapidly, without extensive infrastructure — 10–15 m wingspan.

Modular payload

~2–3 kg payload bay for sensing and communications packages.

Our own avionics

Custom-built flight computers, energy management and comms — the ecosystem we already fly on balloons.

Built for persistent presence

  • Earth observation — mapping, surveying & environmental monitoring
  • Atmospheric & climate research
  • Disaster response — eyes over an area for as long as it takes
  • ISR — intelligence, surveillance and reconnaissance
  • Resilient communications — independent operation even in remote or denied environments
  • Low-altitude scaled prototype under construction
  • Initial tests will validate energy balance, flight control and modular avionics

Together with the Straton Glider, our custom communications network and growing suite of embedded systems, Photon completes a fully self-sufficient stratospheric ecosystem — for both civilian and defense applications.

Strategic partners & early investors wanted

We're looking for partners in both civil and defense sectors to help bring our full stratospheric ecosystem vision to life — data collection, surveillance, or experimental payload testing.

Get in touch