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3. Step up to the bar
Step up to the bar
This barred galaxy, nearly 70 million light-years away from Earth, is one of the largest ever to be photographed by the Hubble Space Telescope. A barred galaxy's spirals don't twist into the centre; rather, they connect to either end of the bar that runs across the middle. That bar, by the way, spans over 150,000 light-years from end to end. (Search: NGC 1300)