Chinese scientists have gathered evidence(1) that indicates an enormous object in the center of the Milky Way known as Sagittarius A (pictured) is actually a super-massive black hole. The object, long thought to exist at this location, is estimated to be 93 million miles in width (the same distance as Earth is from the Sun).
Meanwhile, UCLA astronomers recently discovered a neutron star where they had expected to find a black hole. Their discovery suggests that nature may have a more difficult time producing black holes than was previously suspected. View images(2) from the Chandra Observatory.