So, it's Election Day here in the United States.
Every presidential election seems important, but I am sure that I am not alone in thinking this one is different, maybe more important than most.
So, please, go vote.
When you're done, I give you (once again) Carl Sagan's beautiful "Pale Blue Dot" speech to put it all in perspective.
Adam Frank is a co-founder of the 13.7 blog, an astrophysics professor at the University of Rochester, a book author and a self-described "evangelist of science." You can keep up with more of what Adam is thinking on Facebook and Twitter: @adamfrank4
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