What Are Quasars?

Quasars Are a very recently discovered thing in the Universe.They shines quite brighter & have a high speed. Here are few sites u can find helpful 1. http://csep10.phys.utk.edu/astr162/lect/active/quasars.html 2. http://cas.sdss.org/dr5/en/proj/advanced/quasars/whatare.asp 3. http://www.rdrop.com/users/green/school/quasars.htm

Quasars are the centers of very young, distant galaxies, and they may not exist anymore. We see quasars that happened hundreds of billions of years ago. Back then, there was a lot of dust floating around the universe, and the black holes at the center of galaxies were absorbing so much material, some was expelled and caused the brightest thing in the universe.