![NASA reveals two year project to find entire alphabet in satellite images(25/26)](http://www.ecns.cn/hd/2015/12/31/bc215226544b4b0ea030240c2d488011.jpg)
Letter Y - December 25, 2000, by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite captured this false-color image of the Ugab River in Namibia. (Photo provided to China News Service)
Letter Y - December 25, 2000, by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA's Terra satellite captured this false-color image of the Ugab River in Namibia. (Photo provided to China News Service)