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Apr 4, 2018

This “Ancient Cold Front” in the Perseus Galaxy Shows an Ominous Winter

Posted by in category: space

New research from NASA’s Chandra X-ray Observatory shows the Perseus galaxy cluster is experiencing a 5 billion-year-old cold front that has plummeted through the region at speeds of 300,000 miles per hour. It stretches about 2 million light-years across, and has remained very well-defined.

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