NASA-JPL to use new technology to map change in California's surface

Years of worry create a permanently wrinkled forehead. Laughter and a lifetime of smiles lead to deep creases near the nose and mouth. Decades of squinting create crows feet next to the eyes. Like a face, the Earth's surface is changing constantly. And, like a face, most of the changes are too subtle to notice as they happen. It's only with a glance through the photo album that the changes become