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Fall's Early Start
Credit: NASA/Jeff Schmaltz, MODIS Rapid Response Team)
As fall officially begins with the coming autumnal equinox tomorrow (Sept. 22) at 11:09 p.m. EDT (8:09 p.m. PDT), different parts of the country will start to see more signs that fall is finally here, as leaves on trees begin to change color from their summer green to brilliant yellow, oranges and reds.
This hallmark of the changing seasons begins at different points in different places, with more northerly areas tending to see a riot of arboreal color earlier than southern areas. (In the above image, leaves have already started to change by late August in Alaska.)
Where forests are thick enough, the medley of colors can even be seen by satellites and astronauts in space.