Hubblecast 96: How many galaxies are there?

Since Edwin Hubble discovered that the Milky Way is not the only galaxy in the Universe astronomers try to find out how many of them are there. This new Hubblecast focusses on the question “How many galaxies are there?” including the new numbers achieved in 2016. More information and download options: Subscribe to Hubblecast in iTunes! Receive future episodes on YouTube by pressing the Subscribe