FireSat, a constellation of more than 50 satellites, will be able to detect wildfires as small as the size of a classroom, about 16 by 16 feet, Google said in an announcement.

Google is investing millions of dollars in an effort to use satellites and artificial intelligence to spot small wildfires before they become big ones. The company said in a blog post that it is teaming up with a satellite maker and a group of nonprofits to launch satellites next year that can pinpoint small blazes all over the world before they have gobbled up acres of land.