How Many Galaxies There Are In The Observable Universe?

Image credit: YouTube Fraser Cain

The Universe just got much more crowded thanks to a new survey taken by NASA’s Hubble Space Telescope and other observatories. Since Edwin Hubble discovered ours is not the only galaxy in the cosmic sea, astronomers have been trying to find out just how many there are. They have come to the surprising conclusion that there are at least 10 times more galaxies in the observable universe than previously thought.

In this video by Frasier Cain of Universe Today fame, he will explain just how astronomers determine this number in an easy to understand way.

“It boggles the mind that over 90 percent of the galaxies in the universe have yet to be studied,” Conselice added. “Who knows what interesting properties we will find when we discover these galaxies with future generations of telescopes? In the near future, the James Webb Space Telescope will be able to study these ultra-faint galaxies.”

But does this mean the number of stars has also increased? No as Frasier explains in the video on the next page and reveals how many galaxies are thought to exist now…

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