To do your own comparison..
check out http://www.flashearth.com/

BTW.. it still looks kind of Hot to me.

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I found this image.. looks kind of like smoke from Mauna Loa.. or not.

NASA one.. OnEarth, JPL WMS Server
http://onearth.jpl.nasa.gov/WK/daily_planet/

Daily Planet, a countinuously updating image of the earth, using scenes from MODIS TERRA

A new dataset built for this server, available from Dec 1st 2007 as a beta test. This mosaic is continuosly updated with images from MODIS TERRA, which has almost global daily coverage. This layer is the most current, near-global image of the earth available. The resolution is 250m per pixel in the middle of the swath, less on the edges. Visit the MODIS Website for more information.
New images are added on top of the old data, in the order in which they become available. In general, the latest images are between 6 and 24 hour old. The update process is automated, various errors might be visible. To produce this mosaic, 80GB per day of raw MODIS scenes are downloaded from the LAADS Web, processed using HDFLook into visual images in a global coordinate system and spliced into the current composite. Previous days are also available and can be access using the WMS time argument. Use the OnEarth_DailyPlanet.kml file to view this layer in Google Earth. A WorldKit interactive browser of this data is available here, in addition to the screen icons the arrow keys and the A and Z keys can be used to pan and zoom.

put the layer on google earth.. awesome…
Use the OnEarth_DailyPlanet.kml file to view this layer in Google Earth.