Quasar

A quasar (or quasi-stellar object or QSO) is an extremely luminous active galactic nucleus (AGN), in which a supermassive black hole accretes gas and about 1055W of energy is released in the form of electromagnetic radiation. They are the highest natural energy release events in a universe.

10% are radio-loud quasars that are strong sources of radio-wavelength emission, and the other 90% are radio "silent".

If a quasar's jet stream is angled towards us, it's called a blazar.

A microquasar is a compact region surrounding a black hole with a mass several times that of its companion star. The matter being pulled from the companion star forms an accretion disk around the black hole. This accretion disk begins to emit X-rays and narrow streams or "jets" of subatomic particles at near-light speed, generating a strong radio wave emission.