Quasars are thought to be distant super-massive black holes.
Well, we don't really know how they are formed, the most likely explanation is: Quasars are formed by enormous redshifts in a star which gives it, it's energy.
The fact that most quasars are very distant means they were like that when the Universe was quite a bit younger than it is today.
Quasars formed in the early stages of galaxy formation.Quasars formed in the early stages of galaxy formation.Quasars formed in the early stages of galaxy formation.Quasars formed in the early stages of galaxy formation.
Quasars still exist.
quasars
No. Quasars are at the centers of distant galaxies.
The first quasars were discovered in the 1950's
Yes. Quasars are the size of the solar system.
Quasars do not have galaxies in them, quasars are at the hearts of galaxies. All quasars are located in galaxies, as a quasar involves massive amounts of material falling into a supermassiv black hole. Neither of these can be found outside of a galaxy.
Scientists use radio waves to study distant quasars because quasars emit large amounts of radio waves but not much visible light.
Quasars are the unusual type of active galaxy in the universe.
pulsar and quasars