Space
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Explore the moon's intricate system of newly discovered valleys
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Titan has toxic clouds four times the size of the UK
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Dream Chaser drama: Sierra Nevada partners with Stratolaunch, challenges NASA
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U.S. may keep nuclear warheads handy for giant asteroid threat
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U.S., India space agencies sign agreement as partners in exploration of Mars and Earth
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Lunar and solar, October’s got both eclipses: Where/when to see all the celestial eye candy
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Where will humans spend their holidays come 2024? New report provides glimpse of future travel
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Atheist Stephen Hawking denies existence of 'God': Science 'more convincing explanation' for universe
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Sierra Nevada Corp. challenges NASA-Boeing/SpaceX $6.8 billion space taxi deal: Source selection process smack of 'inconsistencies'
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Mars rover Curiosity drills into Mount Sharp to collect samples and finds mysterious 'ball'
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Rosetta orbiter set to kiss 67P/Churyumov-Gerasimenko on Nov. 12
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Love golf? Mars rover Curiosity finds ball and drills hole
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