Astronomers have discovered that Polaris, the north star, is getting brighter.They say the star has suddenly reversed two decades of dimming.It is expanding at more than 100 times the rate they expected - and nobody is sure why.
http://www.dailymail.co.uk/sciencetech/article-2552530/The-mystery-North-Star-Astronomers-baffled-Polaris-getting-BRIGHTER.html
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