STS040-152-18
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Spacecraft nadir point: 15.8° S, 18.9° E

Photo center point: 16.5° S, 18.0° E

Nadir to Photo Center: Southwest

Spacecraft Altitude: 158 nautical miles (293km)
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Image Caption:
STS040-152-018 Southern Angola, Rice ageS dunes and lakes. Dunes
formed during the windier, drier- than-present times of the last
high-latitude ice age. A subsequent phase, wetter than present,
led to the development of many permanent lakes throughout south
central Africa. Ancient lake shorelines are folded around the
preexisting dunes. The whole semiarid landscape is now covered
by dry savannah without any surface water.