NASA Landsat 7 image of Tassili n’Ajjer National Park, The Gambia

This image is made from multiple observations by the Landsat 7 satellite in the year 2000. It uses a combination of infrared, near-infrared, and visible light to better distinguish between the park’s various rock types. Sand appears in shades of yellow and tan. Granite rocks appear brick red. Blue areas are likely salts. As the patchwork of colors suggests, the geology of Tassili n’Ajjer is complex.

Georges Braque, Violin and Pitcher, 1910

Maerten van Heemskerck, Self-Portrait with the Colosseum, Rome, 1553

Maerten van Heemskerck, Panorama with the Abduction of Helen Amidst the Wonders of the Ancient World, 1535

Lucas van Leyden, Lot and His Daughters, circa 1520

Nichole van Beek, Two Ton Wonton, 2013

Richard Anuszkiewicz, Deep Magenta Square, 1978

Gustav Bauernfeind, The Wailing Wall, 1904

Rochelle Feinstein, Untitled #1, 2013