A half-century ago, Virginia Tower Norwood ’47 invented the first multispectral scanner to image Earth from space. Landsat 1 and its successors have been scanning the planet continuously ever since.
Image: Photo of Norwood by Michelle Groskopf. Other photos of false-color Half Dome and the Bahamas seaweed beds are courtesy of USGS/NASA Landsat. Originally posted on Technology Review.
