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Stars: How big is big?

You may have seen one of these astronomical scale picture sequences, where you go from the Earth to Jupiter to the Sun, then the Sun to Sirius – and all the way up to the biggest star we know of VY Canis Majoris. However, ...

dateDec 12, 2011 in Astronomy
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The central region of the Milky Way

( -- The center of our Milky Way galaxy is about 27,000 light-years away in the direction of the constellation of Sagittarius. At the very center of the galaxy lies a black hole whose mass is about four million ...

dateAug 15, 2011 in Astronomy
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Galactic 'hailstorm' in the early universe

Two teams of astronomers led by researchers at the University of Cambridge have looked back nearly 13 billion years, when the Universe was less than 10 percent its present age, to determine how quasars - extremely luminous ...

dateJan 16, 2015 in Astronomy
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