xenon

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'Paradox' of MIA Atmospheric Gas Solved

Xenon likely packed in the Earth's core: researchers

(Newser) - Levels of the gas xenon in the Earth's atmosphere are way lower—to the tune of 90%—than scientists believe they should be, prompting a mystery one calls "the missing xenon paradox." While some believe the gas escaped into space, many have argued it's in the...

Old Columbia Test Sheds Light on Ketchup

Recovered shuttle experiment reveals nature of viscosity

(Newser) - A hard drive recovered from the Columbia shuttle disaster confirms an old theory about why people shake ketchup before pouring it, LiveScience reports. Astronauts on the craft were conducting a zero-gravity experiment with xenon, a gas, to study viscosity, but scientists feared the results were lost after Columbia burned up...

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