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What Causes an Eclipse of the Moon?

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Uploaded by on Nov 27, 2006

This 'Ask an Astronomer' episode explains lunar eclipses.

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Education

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Standard YouTube License

  • likes, 22 dislikes

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Uploader Comments (SpitzerJim)

  • what are the eclipse seasons

  • They don't line up perfectly with Earth's seasons, but if you Google the term you can find several in-depth articles online.

  • Um, my question is why the moon turns red? Eh, google might handle that.

  • To oversimplify, it's for the same reason that sunsets are red. Our atmosphere filters out the shorter-wavelength light, so right on the edge of the Earth's shadow, the light from the Sun that's hitting the moon is red.

  • If its a shadow why does the moon turn orange later on in the eclipse? :0

  • To oversimplify, it's for the same reason that sunsets are red. Our atmosphere filters out the shorter-wavelength light, so right on the edge of the Earth's shadow, the light from the Sun that's hitting the moon is red.

Top Comments

  • omg HOT LADY!!!!!!!

  • this was awesome to share with my young boys.

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All Comments (103)

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  • i knew it

  • Simple an eclipse is a phase of movement X3

  • i still cant understand :(

  • What would you call it then, if it's not a shadow?

  • Wow, she is wrong. There is no such thing as a shadow in space! For a shadow, there would be a need for light to see it. Think, when there IS NO eclipse, WHERE DOES THE "SHADOW" GO? Since there would be no special force, the waves would travel forever. AKA, There would be a "shadow" somewhere in space: Alas, there isn't one.

  • hmm nice to see other people actually turn in their knowledge to the science of space and eclipses nice work on explaning the earth's axis and how the moon dosent always come into the earth's shadow

  • lol

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