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Comet Siding Spring, heading toward Mars, seen with two tails by Hubble
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Raspberry crazy ants march toward Houston -- will arrive in weeks
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Prehistoric large shrimp-like creature shows how top predator evolves to a gentle giant
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Arroyo toad doing better, wildlife protections removed
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Soyuz spacecraft with US-Russian team successfully links with International Space Station
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Easy-to-use test can reveal presence of "date-rape" drug GHB in a drink
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2012 VP113: How does it size up to other dwarf planets?
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Creation of synthetic yeast chromosome hailed as scientific breakthrough
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U.N. chief witnesses climate change in Greenland
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Household air pollution kills 4.3 mn, 3.7 mn more die from outdoor pollution: WHO
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Asteroid found with its own double ring system dazzles astronomers
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Dwarf planet 2012 VP113 discovered at edge of solar system
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