GK
BIG BANG THEORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Hundreds
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Thousands
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Millions
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Billions
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Detailed explanation-1: -One such estimate says that there are between 100 and 200 billion galaxies in the observable universe.
Detailed explanation-2: -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 Institute in Baltimore, Maryland.
Detailed explanation-3: -Our most detailed observations of the distant Universe, from the Hubble eXtreme Deep Field, gave us an estimate of 170 billion galaxies. A theoretical calculation from a few years ago-the first to account for galaxies too small, faint, and distant to be seen-put the estimate far higher: at 2 trillion.
Detailed explanation-4: -In total, Hubble has discovered about 100 billion galaxies in the Universe.