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Feb 1, 2022 · While estimates among different experts vary, an acceptable range is between 100 billion and 200 billion galaxies, said Mario Livio, an astrophysicist at the Space Telescope Science...
Sep 29, 2020 · Currently, in 2020, it was estimated that there are around 2 trillion galaxies in the observable Universe. Each galaxy is unique, ranging in size from 10,000 light-years to hundreds of light-years. Galaxies have been classified under five categories: spiral, barred spiral, lenticular, elliptical, and irregular.
Galaxies consist of stars, planets, and vast clouds of gas and dust, all bound together by gravity. The largest contain trillions of stars and can be more than a million light-years across. The smallest can contain a few thousand stars and span just a few hundred light-years.
The observable universe contains as many as an estimated 2 trillion galaxies and, overall, as many as an estimated 10 24 stars – more stars (and, potentially, Earth-like planets) than all the grains of beach sand on planet Earth.
Recent estimates tell us that there could be as many as two trillion galaxies in the observable Universe.
Jul 18, 2014 · The best estimate from a 1999 study set that number at about 125 billion galaxies, and a 2013 study indicated that there are 225 billion galaxies in the observable universe. In 2016, that number was upped to 2 trillion, in large part because a new analysis included all the tiny, fluffy galaxies in the early universe.
Mar 8, 2022 · If we made the most straightforward estimate using today’s best technology, we’d state there are 170 billion galaxies in our Universe. But we know more than that, and our modern estimate is...
