The Most Beautiful Galaxies!
A galaxy is a massive, gravitationally bound system consisting of stars, gas, dust, and dark matter. Galaxies can have as many of 100 trillion stars and there are more than 170 billion galaxies in...
A galaxy is a massive, gravitationally bound system consisting of stars, gas, dust, and dark matter. Galaxies can have as many of 100 trillion stars and there are more than 170 billion galaxies in...
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