FireSat Satellites Begin Delivering Twice-Daily Wildfire Data Worldwide.
Earth Fire Alliance and Muon Space launched the first three operational FireSat wildfire-monitoring satellites in July 2026, with data planned for early adopters in fire-prone regions by the end of the year.
Earth Fire Alliance, working with technical partner Muon Space, has developed FireSat, a satellite constellation built specifically to detect, monitor and support the response to wildfires. According to the alliance, the first three operational FireSat satellites launched in July 2026.
The alliance said the satellites will deliver data at least twice daily to early adopters in the world's most fire-prone geographies by the end of 2026. Coverage is then meant to grow in stages. As more satellites are deployed, the data refresh is planned to speed up to one hour or less. The full constellation is intended to provide near real-time updates every 20 minutes or less, globally.
The alliance said the project grew out of a gap in existing tools. Firefighters and scientists have long relied on satellites designed for other purposes, it said, so data can arrive too late to act on. To shape FireSat, the group interviewed more than 200 firefighters, incident commanders and scientists worldwide.
The satellites carry multispectral imaging bands that measure vegetation condition, surface temperature and fire behavior. The alliance said FireSat has two midwave infrared bands. A single band of that type can oversaturate when imaging extremely hot fires, much like an overexposed photograph. The second band is tuned down to record precise temperatures at the highest intensities.
Four data products are planned: hotspot identification for new or growing ignitions, a continuously updated fire perimeter, fire progression showing spread, direction and speed, and fire radiative power, which measures the energy a fire releases. The alliance said these can support evacuation planning, resource allocation and estimates of carbon emissions.
The alliance said it wants the data to reach every fire agency, scientist and community that needs it, and it is seeking partners to help under-resourced agencies. It also described FireSat as the basis for a global wildfire data repository. The page notes that FireSat was named among TIME's best inventions of 2025 and received a SpaceNews Icon Award.
Note: The headline says the satellites are already delivering twice-daily data worldwide. The page says the first three satellites launched in July 2026 and that twice-daily data to early adopters in fire-prone regions is planned by the end of 2026. Global coverage and more frequent updates are later stages.
At a Glance
- The first three operational FireSat satellites launched in July 2026, according to Earth Fire Alliance.
- Data is planned at least twice daily for early adopters in fire-prone regions by the end of 2026.
- The full constellation is designed to update wildfire data every 20 minutes or less, globally.
- Design drew on interviews with more than 200 firefighters, incident commanders and scientists.
- FireSat has two midwave infrared bands so very hot fires do not oversaturate the sensor.
Sources
This brief was written by Brightside Report from the reporting linked above. Spot an error? Request a correction.