 This Hubble Space Telescope view reveals thousands of galaxies stretching back into time across billions of light-years of space. This image covers a small portion of a large galaxy census called the Great Observatory's Origins Deep Survey, Goods, and it sheds light on just how many galaxies there are in the universe. You may recall that the Hubble Deep Field and Ultra Deep Field views provided an estimate of $200 billion. But recent studies by the Goods team found that, in order for the small size of the older galaxies to add up to the mass of the larger galaxies in existence today, there must have been an additional $1,800 billion of them in the early universe. Unfortunately, the vast majority of these are too faint and too far away to be seen with present-day telescopes. But the James Webb Space Telescope, due for launch in 2018, should be able to see them.