Astrophysicist Alex Filippenko explains why you don't want to miss the total solar eclipse on August 21, 2017. Video by Roxanne Makasdjian and Stephen McNally Eclipse footage courtesy of: Alan Dyer/http://www.amazingsky.com/ Additional multimedia courtesy of: Hulda Nelson NASA Romeo Durscher Rick Feinberg The Exploratorium/NASA Steve Albers, Boulder, CO; Dennis DiCicco, Sky and Telescope; Gary Emerson, E.E. Barnard Observatory Music: "Mario Bava Sleeps In a Little Later Than He Expected To" by Chris Zabriskie