13.7 Billion Years Of Galaxy Formation In 46 Seconds

https://www.youtube.com/watch?v=y29RqyYdknw Galaxies are vast systems of planets, stars, gas, dust and dark matter bound together by gravity. Scientists estimate that there are around 170 billion galaxies in the observable universe, ranging in size from tens of millions of stars to one hundred trillion stars. The shape and composition of a galaxy is influenced by interactions... Continue Reading →

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