Black holes seem to occur in the Universe in two distinct types. Read more about those two types here Professor Andrew Norton.
First published on Thu, 07 Feb 2013 as Black holes. To find out more visit The Open University's Openlearn website. Creative-Commons 2013
First published on Thu, 07 Feb 2013 as Black holes. To find out more visit The Open University's Openlearn website. Creative-Commons 2013