D.C. storm's aftermath: A look from space
Use the slider to compare satellite images from NASA of the mid-Atlantic region before and after the derecho passed through, knocking out power to more than a million people in the D.C. region.
Drag the slider to the right to see the before image, and drag it to the left to see the after image.
SATELLITE IMAGES: NASA via AP. GRAPHIC: Wilson Andrews and Emily Ingram - The Washington Post. Published July 5, 2012.