FireSat constellation to launch three satellites for faster wildfire detection
Three FireSat satellites will be launched from Vandenberg Space Force Base, offering high-resolution thermal imaging that can detect fires as small as 16 feet and differentiate between smoldering and flaming combustion.
A trio of FireSat satellites is scheduled for launch early Tuesday from Vandenberg Space Force Base. The first phase of a planned 50-satellite constellation will provide high-resolution thermal imagery of fires and ground conditions every 20 minutes, according to Earth Fire Alliance, the nonprofit behind the project.
The satellites, built by Muon Space in San José, use advanced thermal sensors capable of detecting heat signatures from fires as small as a beach bonfire and distinguishing low-intensity, smoldering fires from hotter, flaming ones. Lead scientist Michael Falkowski said the ability to differentiate fire types "has a big impact on how we can understand the air quality emissions coming off the fire."
Funding for FireSat includes $69 million in grants from the Bezos Earth Fund, Google and the Gordon and Betty Moore Foundation. Data from the initial three satellites will be shared with Cal Fire and fire agencies in Oregon, Texas, Australia and Portugal, and will also be made available to the Amazon Environmental Research Institute for monitoring the Amazon Basin.
Cal Fire plans to distribute the data to Southern California fire agencies later this year. Falkowski, who joined Earth Fire Alliance from NASA, said the new satellites improve on existing NOAA assets, which detect fires within a 1,230-foot square, by identifying brush and roadside fires as small as 16 feet.
State and local fire officials have been adopting new technologies, such as autonomous firefighting helicopters and AI-driven smoke detection systems, to improve response times. Oregon State Fire Marshal deputy Travis Medema said his office will use FireSat data to plan escape routes and monitor fires, emphasizing the potential for early-stage intervention.
Industry analysts note that translating satellite data into actionable information for firefighters will require further development. Joe H. Scott, founder of wildfire analysis firm Pyrologix, described the data as valuable for improving predictive models but cautioned that operational decisions are not yet based on satellite detections.
