Quasar
Quasars are compact objects located far outside of our galaxy. They are so bright they shine more intensely than 100 galaxies combined, but they are so distant their light takes several billion years to reach Earth. Since the 1960s, astronomers have begun to come closer to the truth about these unusual phenomena in space.
The word quasar is a combined form of quasi-stellar radio sources. These objects are so named because they have been observed through radio telescopes. However, only about 10 percent of all quasars emit radio waves. The energy coming from quasars also includes visible light, infrared and ultraviolet radiation, X rays, and possibly even gamma rays.
[The entire page is 1071 words long]
Join eNotes
Over 3,500 study guides, question and answer forums, literature criticism, reference content, and much more!
