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The Geek Sheet
December 7, 2018
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'Blueberries' on Mars have a watery past. But scientists are still baffled.
It was just a few months after NASA's Opportunity rover touched down on Mars in 2004 that it spotted a geological curiosity: tiny, iron-rich spheres scattered across the rock surface near the robot's landing site.
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Mass extinction, 'Great Dying' could happen again, scientists warn
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NASA's InSight Mars Lander reveals stunningly clear pictures of the Red Planet
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Facebook could threaten democracy, warns former GCHQ chief
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Facebook's audit of alleged anti-conservative bias ongoing, won't commit to releasing final report
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