Strange Martian mineral deposit likely sourced from volcanic explosions

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In a finding that is soon to be ground-truthed by NASA's next Mars rover, researchers show that a Martian mineral deposit was likely formed by ashfall from ancient volcanic explosions.
via Science Daily
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Massive Martian ice discovery opens a window into Red Planet's history

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Newly discovered layers of ice buried a mile beneath Mars' north pole are the remnants of ancient polar ice sheets and could be one of the largest water reservoirs on the planet, according to scientists. The layers of ice are a record of past climate on Mars in much the same way tree rings are a record of climate on Earth.
via Science Daily
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Detecting bacteria in space

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A new genomic approach provides a glimpse into the diverse bacterial ecosystem on the International Space Station.
via Science Daily
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18 Earth-sized exoplanets discovered

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Scientists have discovered 18 Earth-sized planets beyond the solar system. The worlds are so small that previous surveys had overlooked them. One of them is one of the smallest known so far; another one could offer conditions friendly to life. The researchers re-analyzed a part of the data from NASA's Kepler Space Telescope with a new and more sensitive method.
via Science Daily
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Three exocomets discovered around the star Beta Pictoris

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Three extrasolar comets have been discovered around the star Beta Pictoris, 63 light years away. Analysis of data from the current NASA mission TESS has revealed the objects for the first time using TESS data.
via Science Daily
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