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en.wikipedia.org/wiki/Observable_universe

The observable universe is a spherical region of the Universe comprising all matter that can be ..... In its vicinity there is a preponderance of large old galaxies, many of which are colliding with their neighbours, or radiating large amounts of radio ...

en.wikipedia.org/wiki/List_of_galaxies

The following is a list of notable galaxies. There are about 51 galaxies in the Local Group on the order of 100,000 in our Local Supercluster and an estimated number of about 100 to 200 billion in all of the observable universe. .... identified with a distant galaxy, being the first of many radio stars to become a radio galaxy.

www.nasa.gov/feature/goddard/2016/hubble-reveals-observable-universe-contains-10-times-more-galaxies-than-previously-thought

Hubble Reveals Observable Universe Contains 10 Times More Galaxies ... there are at least 10 times more galaxies in the observable universe than previously thought. ... in astronomy is that of just how many galaxies the universe contains.

www.spacetelescope.org/news/heic1620

Oct 13, 2016 ... The group came to the surprising conclusion that there are at least 10 times as many galaxies in the observable Universe as previously thought ...

www.theatlantic.com/science/archive/2016/10/so-many-galaxies/504185

Oct 14, 2016 ... The earliest estimates of the number of galaxies in the Universe were ... in the observable Universe is 2 trillion, more than 10 times as many as ...

phys.org/news/2017-01-universe-trillion-galaxies.html

Jan 16, 2017 ... Astronomers have long sought to determine how many galaxies there are in the observable universe, the part of the cosmos where light from ...

www.physics.org/facts/sand-galaxies.asp

According to the best estimates of astronomers there are at least one hundred billion galaxies in the observable universe. They've counted the galaxies in a ...

www.theguardian.com/science/2016/oct/13/hubble-telescope-universe-galaxies-astronomy

Oct 13, 2016 ... There are a dizzying 2 trillion galaxies in the universe, up to 20 times ... Scientists have puzzled over how many galaxies the cosmos harbors at ... And even within this “observable universe”, current technology only allows us ...

www.universetoday.com/30305/how-many-galaxies-in-the-universe

Nov 1, 2016 ... And so, it's with no big surprise that I need to update the estimate for the number of galaxies in the observable Universe. Until a couple of weeks ...