Digital photography—the ability to store images as numbers and manipulate them using computers—has made remarkable discoveries in astronomy possible. These resources explore the technology of digital imaging.

		Digital Images: The Universe Exposed! Article for grades 9 through 12 For most of human history, recording a star meant describing it with words or drawing a picture. The 19th-century invention of photography changed that—only to be revolutionized by digital imaging.
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		Pixel This! Curriculum Materials for grades Kindergarten through 8 No doubt you've received—or even sent—a digital image. But do you know how these pixel-based photographs work? You will after you decode one yourself.
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		Filtering Light Curriculum Materials for grades 6 through 12 All the color photos of astronomical phenomena that we see in magazines and books begin as three separate images—one red, one green, and one blue. Explore how CCD cameras and their color filters work.
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