Now involves more information than we can imagine:
There are two reasons that astronomy is experiencing this accelerating explosion of data. First, we are getting very good at building telescopes that can image enormous portions of the sky. Second, the sensitivity of our detectors is subject to the exponential force of Moore's Law. That means that these enormous images are increasingly dense with pixels, and they're growing fast—the Large Synoptic Survey Telescope, scheduled to become operational in 2015, has a three-billion-pixel digital camera.
(Street art by Sam3)
The Dish 