Fermilab has turned on their new dark energy camera and released some of the first pictures taken with the massive 570 megapixel device. To get that high of resolution, the device is actually constructed from 62 'individual' cameras that are linked together. To take a picture, each camera fires and the resulting images are stitched together.
The camera sits at the focal point of a 3-foot wide mirror on a telescope in Chile. The device will be taking pictures for the next five years. Over that time, it will only manage to capture one-eighth of the night sky. Even so, that much of the sky contains over 300 galaxy clusters and 4,000 supernova.