On April 8th, tens of millions of people across the North American continent will be able to step outside their doors and witness a rare total solar eclipse - that’s when the moon passes between part of the Earth and the sun, temporarily blocking its light. It's our last chance to see one for 20 years in America. Charting a path through 13 states from Texas to Maine, and also passing parts of Mexico and Canada, skywatchers will show up in droves, snarling traffic, to don eclipse glasses and look up as the sun turns black. USA TODAY National Correspondent Elizabeth Weise has been covering this story for USA TODAY, detailing what makes this celestial event so incredibly special. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.