NASA is collaborating with the Alaska Satellite Facility in Fairbanks to create a powerful, web-based tool that will show the movement of land across North America down to less than an inch. The online portal and its underlying dataset unlock a trove of satellite radar measurements that can help anyone identify where and by how much the land beneath their feet may be moving—whether from earthquakes, volcanoes, landslides, or the extraction of underground natural resources such as groundwater.