Active Galactic Nuclei and Their Energy Output.

Active Galactic Nuclei: Where Black Holes Have a Midnight Snack (and the Universe Notices) (Lecture Transcript - Professor Quasar Q. Quasarson, PhD, (allegedly) Astrophysics) (Image: Professor Quasarson giving a lecture,…

Planetary Atmospheres and Their Evolution.

Planetary Atmospheres and Their Evolution: A Cosmic Cocktail Recipe (Lecture Hall, filled with eager students. Professor Astro, sporting a bow tie patterned with nebulae, bounces onto the stage.) Professor Astro:…