Astronomers from the University of Nottingham conducted a new survey of the universe’s galaxy population and concluded that previous estimates low-balled the census by a factor of about 20. Using data from Hubble and telescopes around the world, as well as a new mathematical model, they estimate that there are ten times more galaxies in the observable universe than we thought; previous estimates put the number of galaxies in the universe at around 200 billion.
http://www.astronomy.com/news/2016/10/the-universe-is-10-times-more-vast-than-we-thought
