1 00:00:02,366 --> 00:00:06,100 Solar eclipses occur when the Moon gets between the Earth and the Sun, 2 00:00:06,100 --> 00:00:09,766 allowing the Moon's long shadow to intersect the Earth. 3 00:00:09,766 --> 00:00:13,566 This is the April 8th, 2024 total solar eclipse. 4 00:00:13,566 --> 00:00:16,333 The central part of the shadow, called the Umbra 5 00:00:16,333 --> 00:00:20,433 sweeps across the surface at more than 1500 miles an hour. 6 00:00:20,433 --> 00:00:23,700 It would move even faster if the Earth weren't also rotating in the 7 00:00:23,700 --> 00:00:25,766 same direction. 8 00:00:25,766 --> 00:00:29,233 The path of the umbra is known as the path of totality. 9 00:00:29,233 --> 00:00:33,033 People in that path see the Moon completely block the Sun 10 00:00:33,033 --> 00:00:35,333 turning the day into night and revealing the Sun's 11 00:00:35,333 --> 00:00:38,566 outer atmosphere, the corona. 12 00:00:38,566 --> 00:00:41,900 The umbra is over land for just an hour and forty minutes 13 00:00:41,900 --> 00:00:46,633 before moving into the North Atlantic and then skipping off the edge of the Earth.