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interestingengineering.com | ||
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www.nationalgeographic.com
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| | | | It's been 18 years since Pluto's celestial status was called into question-yet the matter seems far from settled. We asked experts from both sides to make their case. | |
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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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starkeycomics.com
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| | | | A brief history of the 30 or so objects in our solar system that have been considered planets at some point. While the planets themselves may seem constant and timeless, the way we define the term "planet" has changed drastically over the centuries. Here's my timeline of all the objects considered planets in our solar [...] | |
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www.aanda.org
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| | Astronomy & Astrophysics (A&A) is an international journal which publishes papers on all aspects of astronomy and astrophysics |