According to Chris, distinguishing between actual fires and random environmental “noise” posed a significant challenge. The team had to establish a threshold between genuine fires and false readings caused by sensor issues or pixel misalignments. To develop a practical scientific solution, they conducted extensive testing and refinement, even loading a plane with sensors to gauge their progress. Erica Brand, a project manager for FireSat, recalls, “During our initial flight, one of our team members ignited a barbecue and a fire pit in his backyard, allowing us to test the sensors by flying the plane overhead. The sensors successfully detected the fires.”

Preparing for Launch and the Future

At the time of these interviews, the first FireSat satellite had just arrived at the SpaceX launch site.

Just yesterday, the Google Research team witnessed the rocket, carrying the satellite, take to the skies. Erica explains, “Since launch dates are often subject to change, we decided to drive together instead of booking flights. We affectionately referred to it as ‘the minivan caravan plan.'” While they are thrilled to see their efforts come to fruition, they are more eager to observe how firefighters and emergency responders utilize FireSat to respond more quickly and effectively.

On a larger scale, FireSat will contribute to the advancement of wildfire science. The satellite data will be added to a global historical record of fire spread, enabling scientists to better model and understand wildfire behavior. As Juliet notes, “FireSat is more than just an emergency response tool; it’s also an invaluable instrument for reducing greenhouse gas emissions. It’s truly remarkable that the constellation can help mitigate climate change while also responding to its effects.”