National Geographic : 2014 Mar
Hidden Hole Viewed through an amateur telescope, the Milky Way’s dusty center sweeps diagonally across the sky, draping stellar nurseries. Behind the veil lurks the supermassive black hole at the center of our galaxy. StÉPhane GuiSard, euroPean Southern oBSerVatory something is there, at least in a mathematical sense. something not just small but also unimaginably heavy.