IC 1101, the largest galaxy in the observable universe, is about 1 billion light years from Earth. Like all of the largest galaxies, it's an elliptical galaxy, and has an estimated diameter of up to 6 million light years. Inside, there are more than 100 trillion stars, though rapid star formation has long since ceased.
IC 1101, The Grandaddy Galaxy
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Curiosity StaffDecember 22, 2014
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