Galaxies
Understand galaxies and their interactions
Milky Way
Learn the structure of the Milky Way, from its spiral arms to its center, and shows you exactly where our solar system fits into this vast cosmic expanse.
Protoplanetary Disks
Protoplanetary disks are vast, spinning clouds of gas and dust that surround young stars — and they are the birthplaces of planets.
Galaxy Collisions
What happens when two galaxies—each holding billions of stars, planets, black holes, and dust clouds—crash into each other at hundreds of thousands of miles per hour? A cosmic event so massive that it reshapes the universe itself.
Galaxy Quenching
At some point, many galaxies suddenly stop forming new stars — a process known as galaxy quenching. Once vibrant stellar nurseries go quiet, leaving behind aging, fading stars.
