sentence: Sometimes, the Moon passes between the Earth and the Sun. The Moon blocks the light of the Sun and a shadow of the Moon is cast on the Earth's surface. This is an eclipse of the Sun, or a solar eclipse.
modified: fix grammar: Sometimes, the Moon passes between the Earth and the Sun. The Moon blocks the light of the Sun and an shadow of the Moon is cast on the Earth's surface. This is a eclipse of the Sun, or an solar eclipse.