It's been referred to as "the Super Bowl of the sky" - the total solar eclipse on August 21 that will allow people across the continental United States to witness a rare and spectacular celestial event. Martha Teichner meets with retired NASA astrophysicist Fred Espenak (known as "Mr. Eclipse") and with other "umbraphiles" whose love of eclipses outshines all else.
Solar eclipse accessories, Apple iPad Pro, Google Home, and more great tech deals
You’ve probably already heard that a total solar eclipse will travel across the United States from coast to coast on August 21st, and that it’s going to be perhaps the biggest celestial event of the decade. (For more information, we’re sharing everything you need to know about the celestial phenomenon.)