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Mystery giant Mars plumes still unexplained

On Feb. 16, an international group of researchers proposed new hypotheses about some unusual plumes spotted by amateur astronomers on Mars in 2012. The plumes were seen rising to altitudes of over 250 km above. By comparison, ...

dateMar 02, 2015 in Space Exploration
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Tongan volcano creates new island

A Tongan volcano has created a substantial new island since it began erupting last month, spewing out huge volumes of rock and dense ash that has killed nearby vegetation, officials said on Friday.

dateJan 16, 2015 in Earth Sciences
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