Google-backed FireSat satellites launch to spot wildfires before they spiral

The first three operational satellites in the Google-backed FireSat constellation reached orbit this month, launching aboard a SpaceX Falcon 9 from Vandenberg Space Force Base in California. The microsatellites, built by Muon Space for the nonprofit Earth Fire Alliance, represent the first satellite system purpose-built for wildfire detection—and they arrived just as smoke from hundreds of Canadian and US wildfires choked cities across both countries.

After a three-month testing phase, the satellites will begin serving fire agencies in California, Colorado, Australia, and Portugal by year's end. Each carries multispectral imaging that can cut through smoke and cloud cover to spot blazes as small as five by five meters—roughly the size of a suburban backyard. That capability was validated by a prototype satellite launched in 2025, which collected over a million images and caught low-intensity fires invisible to existing orbital systems.

Google has poured more than $15 million into early deployment, with the Bezos Earth Fund adding $26 million. The company's research arm plans to layer its AI models on top of FireSat data, comparing live imagery against historical baselines to flag tiny fires and fuel predictive wildfire models. The full constellation of more than 50 satellites, targeted for the early 2030s, would deliver imagery anywhere on Earth every 20 minutes.

The Earth Fire Alliance estimates that even an hourly revisit rate could save over $1 billion in fire damage, protect 3,500 homes, and prevent nearly 22 million tons of carbon emissions. But the project arrives against a backdrop of deep irony: the AI boom driving Google's wildfire ambitions also fuels a data-center construction wave that threatens to emit more than 129 million tons of greenhouse gases annually from new natural gas plants. Google's own electricity usage climbed 37 percent in 2025 alone.

Detection is only one piece of the puzzle. Canadian provinces are struggling to keep nearly 900 active wildfires in check with stretched aerial firefighting fleets, and fire scientists warn that decades of suppression strategy are being overwhelmed by hotter, drier conditions. Still, catching a fire when it's 16 feet across instead of 16 miles across could change the math for the agencies on the ground.