Umbral and penumbral shadow cones animation
Animation of the umbral and penumbral shadow cones traveling across the surface of Earth during the August 21, 2017 total solar eclipse. Credit: Goddard Science Visualization Studio, NASA.
Animation of the umbral and penumbral shadow cones traveling across the surface of Earth during the August 21, 2017 total solar eclipse. Credit: Goddard Science Visualization Studio, NASA.