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Precession changes the pole star. Earth's axis has a little wobble in it, so over 26,000 years the axis points to a slightly different area of sky. During that time the north pole star also changes. In 12,000 years it will point towards Vega. Mona Evans, "Ecliptic and Equinoxes" http://www.bellaonline.com/articles/art20530.asp

from Bloglovin’

Milky Way and Aurora over Antarctica (Astronomy Picture of the Day RSS Feed)

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from Bt images

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All the colors of the universe, rainbow colors.

This is a real shooting star!  It is only a couple of hundred light years distant.  Mira is moving very fast relative to everything near it, likely because it was ejected from a star cluster.

This is a real shooting star! It is only a couple of hundred light years distant. Mira is moving very fast relative to everything near it, likely because it was ejected from a star cluster.

Earth rotation images - Google Search

from TheMetaPicture.com

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#Antartica from #space #NASA. #planet #earth #snow #ice

from The Huffington Post

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Lina asked me last night why the moon is closer to the earth. I couldn't really explain it. Now I have this. :-)