Phil takes a look at the explosive history of our cosmic backyard. In today's Crash Course Astronomy, Phil takes a look at the explosive history of our cosmic backyard. We explore how we went from a ...

Last week’s episode of Crash Course dealt with stars in multiple systems: binaries, triples, quadruples, and more. Most stars in the sky are multiples! It turns out that stars can be in even bigger, ...

Today on Crash Course Astronomy, Phil dives into some very dark matters. Today on Crash Course Astronomy, Phil dives into some very dark matters. The stuff we can actually observe in the universe ...

One of the (many) reasons I wanted to make the Crash Course Astronomy series was to create a resource for people. The series is set up like a supplemental astronomy class covering the same sorts of ...