Monday, September 1, 2008

Mapping Planets

Mapping Exoplanets

Credit: NASA/JPL-Caltech/T. Pyle (SSC)

Wonder how you map so distant bodies? Click on images above and get a how-to video or two. :-)


This is the first-ever map of the surface of an exoplanet, or a planet beyond our solar system. The map, which shows temperature variations across the cloudy tops of a gas giant called HD 189733b, is made up of infrared data taken by NASA's Spitzer Space Telescope. Hotter temperatures are represented in brighter colors.

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