Solar system
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Discovery of Neptune-size exoplanet with clear skies and water excites astronomers
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Water of our solar system predates our sun; Here’s how scientists know
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Is Pluto a planet? The public weighs in
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Search for the ‘World’s Oldest Computer’ made possible by high-tech diving gear
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Rosetta orbiter science data reveals surprising facts about comet 67P/Churyumov-Gerasimenko
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Interstellar dust found on spacecraft could be oldest samples ever
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Rosetta meets Comet 67P for first time. Here are some closeup images
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Transiting exoplanet has 704 days in its year, longest known orbit
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Dancing dwarf galaxies around giant galaxies baffle boffins
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Fastest spacecraft ever created is honing in on Pluto: What data are scientists expecting to collect?
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Mercury's violent childhood one reason for planet's iron richness
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New Horizons spacecraft to probe Pluto moon Charon for ancient underground ocean
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