Saturday , August 18 2018
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Space Photos of the Week: Dead Stars and a Cute L’il Comet

This ghostly image captures a death. The red filaments of gas are remnants of a supernova explosion called HBH 3. Astronomers think it happened anywhere between 80,000 and 1 million years ago, and these markers stretch 150 light years across—among the largest supernova remnants ever discovered. And while the red ...

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First particle accelerator beam measurement in six dimensions

The first full characterization measurement of an accelerator beam in six dimensions will advance the understanding and performance of current and planned accelerators around the world. A team of researchers led by the University of Tennessee, Knoxville conducted the measurement in a beam test facility at the Department of Energy’s ...

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Inside Twitter’s Struggle Over What Gets Banned

Inside Twitter’s Struggle Over What Gets Banned Image Twitter has been embroiled in internal conversations about how to evolve and explain its policies for what can and cannot be posted on its site.CreditJason Henry for The New York Times By Cecilia Kang and Kate Conger Aug. 10, 2018 SAN FRANCISCO ...

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