Start Date: End Date: Published Date Data Date
Data acquired June 21, 2012 720 x 480 JPEG
Data acquired June 21, 2012 4288 x 2848 1 MB - JPEG
Data acquired September 11, 2002 720 x 480 JPEG
Data acquired September 11, 2002 1440 x 960 334 KB - JPEG
Data acquired June 21, 2012 JPEG
Between 2002 and 2012, water levels dropped significantly in these manmade lakes in the Sahara.
Astronaut photograph ISS031-E-148455 (top) was acquired on June 21, 2012, with a Nikon D2Xs digital camera using a 14 mm lens. Astronaut photograph ISS005-E-13562 (bottom) was acquired on September 11, 2002, with a DCS760C digital camera using an 80 mm lens. Both images are provided by the ISS Crew Earth Observations experiment and Image Science & Analysis Laboratory, Johnson Space Center. The images were taken by the Expedition 5 and Expedition 31 crews. They have been cropped and enhanced to improve contrast, and lens artifacts have been removed. The International Space Station Program supports the laboratory as part of the ISS National Lab to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet. Additional images taken by astronauts and cosmonauts can be viewed at the NASA/JSC Gateway to Astronaut Photography of Earth. Caption by M. Justin Wilkinson, Jacobs/ESCG at NASA-JSC.
Published July 16, 2012 Data acquired June 21, 2012