In a sky filled with bright stars, this image appears to show a massive black hole in its centre. But, rather than being a genuine black hole, the eerily dark 'hole' in this photograph is a cloud of matter - known to astronomers as a dark molecular cloud - which blocks all light from passing through it. In infrared images, though, it becomes transparent. The interiors of molecular clouds are some of the coldest and most isolated places in the universe.  http://www.dailymail.co.uk/sciencetech/article-2093929/Incredible-image-appears-massive-black-hole-sky.html |
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