What is a qazar?

Answer 1

Quasar.

From Wikipedia:

A quasi-stellar radio source (quasar) is a very energetic and distant galaxy with an active galactic nucleus. Quasars were first identified as being high redshift sources of electromagnetic energy, including radio waves and visible light, that were point-like, similar to stars, rather than extended sources similar to galaxies.

http://en.wikipedia.org/wiki/Quasar