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www.newdawnmagazine.com | ||
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www.space.com
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| | | | Explore the eight (or nine) planets of the solar system in order from nearest to the sun and discover the many wonders of our solar system along the way. | |
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www.thoughtco.com
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| | | | Astronomer Henrietta Swan Leavitt's discoveries led to the discovery of the expanding universe and distances between objects in the cosmos. | |
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www.thunderbolts.info
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www.generation-online.org
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| | The drift of Humpty Dumpty on generation-online.org |