Are we being watched? Tens of other worlds could spot the Earth

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Scientists have turned exoplanet-hunting on its head, in a study that instead looks at how an alien observer might be able to detect Earth using our own methods. They find that at least nine exoplanets are ideally placed to observe transits of Earth.
via Science Daily
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Scientists unravel new insights into promising semiconductor material

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Researchers have established new findings on the properties of two-dimensional molybdenum disulfide, a widely studied semiconductor of the future.
via Science Daily

Calm Waters and Geomagnetic Storm

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Very recognizable stars of the northern sky are a backdrop for calm waters in this moonlit sea and skyscape off Cape Cod, Massachusetts. Taken on September 7, the photo also records a colorful display of northern lights or aurora borealis triggered by a severe geomagnetic storm. Visible crossing the Sun, the giant solar active region responsible, AR 2673, is much larger than planet Earth. It has produced the strongest flare of the current solar cycle and and the Earth-directed coronal mass ejection in the last few days.

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Shades of Noir: My Hunt for an Eclipse Glasses Villain

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As the first reports of eclipse eye damage emerge, a reporter attempts to get to the bottom of the shady shades fiasco.
via New York Times