IE 11 is not supported. For an optimal experience visit our site on another browser.

Total eclipse 101: How to view the event safely

02:38

As the first total eclipse from coast to coast since 1918 approaches, Jason Tanz of Wired magazine is on TODAY to explain how to view the event safely. The longest moment of totality, about two and a half minutes, will occur in Carbondale, Illinois, he explains.