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How does a lunar eclipse prove that Earth is round?

In: Planetary Science, The Moon, Planet Earth [Edit categories]

Answer:

The shadow cast on the Moon is round, so the Earth must be round.

Contributor:

Christino

First answer by ID1171081654. Last edit by Christino. Contributor trust: 264 [recommend contributor ]. Question popularity: 2 [recommend question].

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How do lunar eclipses help prove that the earth is spherical?
Earth's shadow on the Moon during a lunar eclipse is round, and only a spherical object would always have a round shadow.
What happens to the earth in a lunar eclipse?
during lunar eclipse,the earth castes its shadow on moon,and nothing happens to earth
When is the next lunar eclipse in earth?
There will be a penumbral lunar eclipse on August 6, 2009 (you won't notice it), and a partial lunar eclipse on December 31, 2009, visible from the Eastern Hemisphere.
What happens to earth when there is a lunar eclipse?
Nothing very dramatic happens to earth during a lunar eclipse. During the eclipse there will be much less reflected light coming to the night time side of the earth.
How can you prove a round earth?
You can look at a picture of it taken from space, or the moon