Quasars

Overview

A quasar is an extremely luminous active galactic nucleus, powered by gas falling toward a supermassive black hole at a galaxy's center. They are among the most distant and energetic objects we observe.

This is a foundation page. We are expanding it with structured, sourced content. Planned material includes:

• Active galactic nuclei
• How quasars shine
• Quasars and cosmic distance
• Notable quasars

Frequently asked

What is Quasars?

A quasar is an extremely luminous active galactic nucleus, powered by gas falling toward a supermassive black hole at a galaxy's center. They are among the most distant and energetic objects we observe.

Is Quasars astronomy or astrology?

Quasars is part of astronomy — the evidence-based, scientific study of the universe. On Asteria Star, astronomy is kept clearly separate from astrology.