Slide 1 When Galaxies Collide Slide 2 It is not uncommon for galaxies to gravitationally interact with each other, and even collide! Slide 3 When Galaxies Collide Slide 4…

Dark Matter and Dark Energy Dark Matter in Galaxies and Clusters AST 112 Matter Galaxies appear to be made up of stars, gas and dust Reasonable to think thatâs the end of…

Introduction to Cosmology Types of Universes If you were to make a universe, would you give it a finite size, or make it infinite? In a finite universe, gravity eventually…

When Galaxies Collide When Galaxies Collide It is not uncommon for galaxies to gravitationally interact with each other, and even collide! When Galaxies Collide When Galaxies…

Dark Matter and Dark Energy Dark Matter in Galaxies and Clusters AST 112 Matter Galaxies appear to be made up of stars, gas and dust Reasonable to think thatâs the end of…