Solar Eclipse Quiz: How Much Do You Really Know?
See if you can ace our collection of eclipse brain-teasers.
On August 21, a total solar eclipse will cross the United States from coast to coast for the first time since 1918.
The historic event is expected to draw record crowds, as millions of people will be in or close to the path of totality, where viewers can see the moon completely blot out the sun for more than two minutes.
Before the main event, find out how much you know about eclipses, from the science behind the spectacle to the historic and cultural connotations.
DON'T MISS THE REST OF THIS STORY!
Create a free account to continue and get unlimited access to hundreds of Nat Geo articles, plus newsletters.