What in the world is a Total Solar Eclipse? Why in the world is it so rare? When and Where in the world can we watch it happen? And how in the world can we view it without hurting our eyeballs? That's a lot of questions! And we've got answers. Join Guy Raz and Mindy Thomas for the Who, What, When, Where, Why, How, and Wow, of the Total Solar Eclipse! Originally aired August 14th, 2017.