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When the moon blocks sunlight from reaching a portion of the earths surface?

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It's a solar eclipse. The next one is scheduled for sometime in 2012
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Why can't sunlight reach the surface of the earth by conduction or convection?

You have the Sun over there in space and the Earth over here in space. OK? For conduction to work the two bodies must be physically touching - the sun and the earth are not

How long does it take the sunlight to reach earths surface?

A little over 8 minutes The speed of light is 299,792,458 m/s (we'll use 3x10^8 m/s) The average distance from the Earth to the Sun is 149.6x10^9 m time = distance/velocity t

The moon blocks sunlight from reaching Earth?

The moon is only big enough to block sunlight from a small spot on the Earth ... never more than about 170 miles across. On the rare occasion when that happens, the event

What occurs when the Earth or the Moon temporarily blocks sunlight from reaching the other?

This is the definition of an eclipse. If the Sun, Earth and Moon are in a direct line, the shadow of the Moon can fall on the Earth, or the shadow of the Earth can fall on the
In Science

When the moon blocks sunlight from reaching a portion of earths surfaces?

When the moon blocks sunlight from reaching a portion of the  earth's surfaces it is called a solar eclipse. A solar eclipse can  be total or partial. Unlike a lunar eclipse