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A glimpse of universe

12-25-2013 13:59 BJT

This is what the Universe would look like if it were a tiny model

The observable Universe is a 92-billion-light-year sphere—a place so big that it's impossible to imagine its dimensions. But what if the Universe were as small as a scale model train? Then the Horsehead Nebula would look something like the above. (Photo: Xinhuannet)

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