rosetta
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Scientists Think Aliens May Be Riding Around On Comets
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Europe's Solar-Powered Satellite Imperils 10-Year Space Mission
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More People Tweeted About The First Comet Landing Than Kim Kardashian's Butt This Week
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ESA: 'With Time Running Out, We're Taking Risks' With Comet Lander
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First Comet Landing Probe Might Be In Trouble
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Spacecraft Lands On Comet!
