Carl Sagan Day

It's a thing, apparently. Neat article about his cultural importance over at New Scientist.

From the article:

Carl Sagan, by equal measure professorial and childlike, offered space enthusiasts a new paradigm. Buck Rogers was out; refined and groovy cosmic citizen was in. Here was a visionary whose perspective dwarfed the politics of the space race and who spoke of humanity as a brotherhood with a common past and a transcendent future in the heavens.