How fast will October's annular solar eclipse travel?
The moon's shadow will travel as fast as 7,000 mph on Oct. 14 and as slow as 1,700 mph. We explore what affects the speed of a solar eclipse.
TroibNews 
The moon's shadow will travel as fast as 7,000 mph on Oct. 14 and as slow as 1,700 mph. We explore what affects the speed of a solar eclipse.
