Mapping ChangeCancun, Mexico and the thriving city that's grown out of what was once a sleepy fishing town look much different when seen by a satellite instrument that watches for thermal generation and reflection. This picture shows surface temperature and elevation.
Photograph by NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team

Week’s Best Space Pictures: Mars' Ancient River System

A glacier oozes in Alaska and clouds swirl into vortices in the southern Indian Ocean.

ByJane J. Lee
November 6, 2015

Feed your need for heavenly views of the universe with our pick of the most awe-inspiring space pictures. This week, light travels for 8.5 billion years and we glimpse a changing Cancun from on high.

National Geographic History Magazine

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