How do astronomers make sense out of the vastness of space? How do astronomers make sense out of the vastness of space? How do they study things so far away? Today Phil talks about distances, going ...

Astronomy is weird. Everything we study is really, really far away. So far away really, that for most of history we didn’t know how far away they were. It was impossible to measure. But then some ...

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 ...

Gamma-ray bursts are not only incredible to study, but their discovery has an epic story all its own. Today Phil takes you through some Cold War history and then dives into what we know. Bursts come ...

For the two dozenth episode of Crash Course Astronomy, we have to take a step away from the straight astronomy stuff and talk a little bit about light. After all, pretty much everything we know about ...