Monday, March 04, 2019

Two Trillion Galaxies

This Is How We Know There Are Two Trillion Galaxies In The Universe

Hubble, even at its best, only reveals perhaps 10% of what’s out there. Here’s how we get the rest.


When you gaze up at the night sky, through the veil of stars and the plane of the Milky Way close by, you can’t help but feel small before the grand abyss of the Universe that lies beyond. Even though nearly all of them are invisible to our eyes, our observable Universe, extending tens of billions of light years in all directions, contains a fantastically large number of galaxies within it.

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