Wildfires have been increasing in frequency, severity, and intensity in many landscapes worldwide. The trends are driven by climate change (1), changes in land management (2) and land cover (3), logging (4), and ineffective fire mitigation actions (5). As a result, extensive parts of some landscapes are now extremely flammable and will remain so for decades to come (6). Improving fire management, especially early detection, will require new technologies and strategies (7, 8).