2000 years of solar eclipses
 

Pretty cool image from the Earth science picture of the day site.

http://epod.usra.edu/archive/images/...000to2000p.jpg

A larger version can be found here: http://epod.usra.edu/archive/images/...000to2000p.jpg

It shows the location of all the total solar eclipses over the past two millennia! That’s petty nifty. As you can see, some places got more than others (where the trails are brighter white). Chicago seems to have been blessed, as has central southern Canada. It’s interesting; there is very roughly one solar eclipse per year. The shadow of the Moon on the ground is relatively narrow, so even after so many eclipses the Earth isn’t completely covered.

You may notice there are more eclipses in the north than the south. According to ESPOD, that’s because there have been more eclipses during the (northern) summer months. During that time, the Earth is farther from the Sun, making the Sun appear smaller, so it’s easier for the Moon to cover it up. Since that’s northern summer, days are longer too so there is a higher chance of actually seeing an eclipse in the northern hemisphere.

The next total solar eclipse will be on August 1, 2008. But you’d better dress warmly: the track is way up north, crossing Canada, Greenland, and Asia.