James R. Neff Public Lecture: Dr. Fred Espenak

On August 21, 2017, a total eclipse of the Sun will be visible from the contiguous United States for the first time since 1979. The track of the Moon's shadow cuts diagonally across the nation from Oregon to northeast Kansas to South Carolina. Inside the 68-mile-wide path of totality, the Moon will completely cover the Sun as the landscape is plunged into an eerie twilight, and the Sun's glorious corona is revealed for over 2 minutes.