Enlarged Spleen Overview. The spleen is an important organ in the immune system. It is a bean shaped structure, located in the left upper portion of the abdominal cavity, under the diaphragm, tucked in between the 9th and 11th ribs, in the mid-back.
Chandra and NASA's Hubble Space Telescope later collected data from the event's afterglow, and together the observations led astronomers to conclude that the powerful explosions can result when a black hole and a neutron star collide, producing another black hole.
Black holes pull matter and even energy into themselvesâbut no more so than other stars or cosmic objects of similar mass. That means that a black hole with the mass of our own sun would not suck objects into it any more than our own sun does with its own gravitational pull.Planets, light, and other matter must pass close to a black hole in order to be pulled into its grasp.xtremely large black holes may exist at the center of some galaxiesâincluding our own Milky Way. These massive features may have the mass of 10 to 100 billion suns. They are similar to smaller black holes but grow to enormous size because there is so much matter in the center of the galaxy for them to add.