The quasars are a kind of cosmic objects very bright and intense emission of radiation. These effects are attributed to gas particles moving at high speed. In size from one to two years of light, but is 1,000 times brighter than the giant galaxies. The immense brightness allows them to be observed at a distance of 10,000 million light years. They appear in the telescope as the most distant objects while the brightest, and are shaped like a star. More recent theories suggest that the formation of quasars is a consequence of swirling gases that form them, they produce heat and generate an intense brightness.
The quasar more far has been detected is 13,000 million light years from Earth.
The first quasar was discovered by astronomer Maarten Schmidt in 1963, when he noted the presence of a strong source of Galactic-type light, like a faint star.