The moon slid slowly across the sun Monday afternoon, appearing to devour it whole, as millions of people gasped, cheered and stood in awe beneath a daytime sky turned dark. A total solar eclipse ...

A total lunar eclipse occurs when the Earth is positioned exactly between the moon and sun. The Earth casts a shadow on the surface of the moon, dimming it. The moon doesn't produce its own light.

On Wednesday (April 19) and Thursday (April 20), the moon will pass in front of the sun creating an eclipse for certain regions of the planet.

The moon slid slowly across the sun Monday afternoon, appearing to devour it whole, as millions of people gasped, cheered and stood in awe beneath a daytime sky turned dark. A total solar eclipse ...

If the Moon had a totally flat orbit, every full moon would be a lunar eclipse. But the Moon’s orbit is tilted by about 5 degrees relative to Earth’s orbit of the Sun.

If the moon is near its perigee – the closest distance the moon is to Earth - it will appear slightly bigger and completely cover the sun, creating a total solar eclipse. That’s what will ...

If you were on the Moon during the lunar eclipse, it would look like Earth was blocking out the Sun. A total lunar eclipse can be observed every two to three years from a given location, according ...

During a solar eclipse, the moon comes between the sun and Earth, blocking the sun's light from reaching Earth. (This story was updated to fix a typo.) Contributing: Eric Lagatta, USA TODAY.

Sun astrophotographers, in particular, will be using the three and half minutes of moon coverage to get as many photos as they can to study the sun's corona during this time.

A total lunar eclipse will appear to transform the full moon into a reddish "blood moon" this week across the Western Hemisphere. The eclipse's peak begins at 2:26 a.m. ET Friday and lasts about ...

During a solar eclipse, the moon comes between the sun and Earth, blocking the sun's light from reaching Earth. (This story was updated to fix a typo.) Contributing: Eric Lagatta, USA TODAY.