Lost city of Ubar, radar and optical images

Lost city of Ubar, radar and optical images

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Credit: NASA/SCIENCE PHOTO LIBRARY

Caption: Lost city of Ubar. Radar image (left) and enhanced optical image (right) of the desert region around the lost city of Ubar, southern Oman. In the radar image the purple area is a large field of sand dunes, whilst the green area is the rough limestone rocks of the desert floor. The white diagonal streak is a wadi (dry stream). The fortress of the lost city is near the wadi at centre. The radar data for this image were gathered by the SIR-C radar instrument and the optical image was taken by shuttle astronauts, both aboard Shuttle Mission STS-59 on 13 April 1994.

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Keywords: 13 april 1994, 13/04/1994, 1990s, 20th century, ancient city, arabia, arabian peninsula, archaeology, archeology, astronaut photography, desert, desert floor, desert outpost, dry stream, duo, earth observation, east, empty, enhanced, environment, fortress, from space, geography, geological, geology, historical, history, lost city, lost city of ubar, middle, oman, optical, pair, quarter, radar, rough limestone, sand dune, sir-c, sir-c imagery, space shuttle, spaceborne imaging radar c/x-b, srl-1 imagery, track, tracks, two, ubar, wadi, x-sar

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