Why do black holes have such strong gravity? | Bad Astronomy | Discover Magazine by Jim Stitzel | Jul 22, 2008 | General Why do black holes have such strong gravity? | Bad Astronomy | Discover Magazine. Share:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Reddit (Opens in new window)MoreClick to share on Tumblr (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Pocket (Opens in new window)Like this:Like Loading... Related