WIDE ANGLE: TOP 10 MOMENTS IN ASTRONOMY

Astronomy has come a long way since humans peering at the night sky began asking, "what the heck is going on up there?"

From Galileo's first use of the telescope -- which ushered in the dawn of modern astronomy -- to the discovery of the Big Bang's cosmic calling card, here we've chiseled out 10 of the biggest moments in astronomical history.

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