... Behemoth black hole found in an unlikely place . ... Chandra Observatory catches giant black hole rejecting material . ... Astronomers using NASA s Chandra X-ray Observatory have taken a major step in explaining why material around the giant black hole at the center of the Milky Way Galaxy is extraordinarily faint in X-rays. ... The researchers found that the Chandra data from Sgr A* did not support theoretical models in which a concentration of smaller stars around the black hole emits the X-rays. ...