Word by Word Definitions. icingplay. : a sweet flavored usually creamy mixture used to coat baked goods (such as cupcakes) âcalled also frosting. : an illegal act by an ice hockey player of shooting a puck from within the defensive zone or defensive half of the rink beyond the opponents' goal line but not into the goal.
A study suggested that there are 100 million black holes in the Milky Way Galaxy, but X-ray observations have only found dozens so far. Most of the black holes may be âdarkâ and difficult to see directly at any wavelength.
Galaxies are categorized according to their visual morphology as elliptical, spiral and irregular. Many galaxies are thought to have black holes at their active centers. The Milky Way's central black hole, known as Sagittarius A*, has a mass four million times greater than the Sun.