Three operational FireSat microsatellites reached orbit on July 7, 2026, launched aboard a SpaceX Falcon 9 from Vandenberg Space Force Base. The timing is not subtle: wildfire smoke was actively choking the US and Canada when the rocket lifted off.
FireSat is the first satellite constellation built specifically for wildfire detection. Managed by the nonprofit Earth Fire Alliance and manufactured by Muon Space, the constellation is backed by over $15 million from Google and $26 million from the Bezos Earth Fund. After a three-month checkout period, the three satellites will scan every fire-prone region on Earth at least twice daily, flagging small fires that existing satellites miss, across the US, Australia, and Europe.
The full article is worth reading for the technical specifics on detection thresholds and how fire agencies will actually receive and act on the data. The real question is how fast the constellation scales beyond three satellites, and whether twice-daily coverage is enough when a fire can double in size within hours.
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