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Cassini-Huygens: Exploring Saturn's System
September 15, 2017 | ReferenceCassini studied Saturn and its many moons for 13 productive and remarkable years before finally plunging into the ringed planet on purpose on Sept. 15, 2017.
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How Big Is Earth?
September 15, 2017 | ReferenceEarth is the fifth largest planet in the solar system and the densest.
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Tycho Brahe Biography
September 12, 2017 | ReferenceTycho Brahe made many significant contributions to astronomy.
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Solar System Facts: A Guide to Things Orbiting Our Sun
September 12, 2017 | ReferenceLearn how our solar system formed, how it was discovered and the names of the planets, dwarf planets and regions of space that orbit our sun.
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Mars' Atmosphere: Composition, Climate & Weather
September 11, 2017 | ReferenceMars' atmosphere is too thin to support life as we know it. And it's very dusty. The red planet has the largest dust storms in the solar system.
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Moon Facts: Fun Information About the Earth’s Moon
September 08, 2017 | ReferenceLearn how Earth’s moon formed, how its orbit affects Earth’s tides, why solar and lunar eclipses happen and the history of lunar exploration.
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What is Astronomy? Definition & History
September 07, 2017 | ReferenceAstronomy is the study of the sun, moon, stars, planets and other objects and phenomena in space. It has a long, rich history.
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Famous Astronomers | List of Great Scientists in Astronomy
September 05, 2017 | ReferenceThis list of famous astronomers includes great scientists in history who mastered many fields and modern astronomers who helped popularize astronomy.
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Night Sky: Visible Planets, Moon Phases & Events, September 2017
September 01, 2017 | ReferenceFind out what's up in your night sky during September 2017 and how to see it in this Space.com stargazing guide.
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MAVEN: NASA's Orbiter Mission to Mars — Mission Details
August 30, 2017 | ReferenceNASA's Mars probe is expected to study the atmosphere of the Red Planet in amazing new detail.
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