THERE ARE TEN TIMES MORE GALAXIES IN THE UNIVERSE THAN PREVIOUSLY BELIEVED. Less than a month ago, I posted here about the Galaxy Zoo website’s enlisting thousands of nonscientists to classify millions of galaxies, beginning in 2007 with a data set made up of a million galaxies imaged by the Sloan Digital Sky Survey.
Now, the title of this entry on the RealClearLife website is: “There are ten times more galaxies in the universe than previously believed.”
The new estimate comes from data provided by the Hubble Space Telescope and the use of new mathematical models.
The previous estimate of the number of galaxies in the observable universe was 200 billion. The new estimate is 2 trillion.