Phil gives the course a send off with a look at some of his favorite topics. Here it is, folks: the end. In our final episode of Crash Course Astronomy, Phil gives the course a send off with a ...

Galaxies, part 2: Crash Course Astronomy #39. Episode 39 | 15m 20s. Active galaxies pour out lots of energy. Active galaxies pour out lots of energy, due to their central supermas ...

Episodes of the web series Crash Course Astronomy, written and hosted by Phil Plait, is now available in several languages.

The final episode of Crash Course Astronomy with Phil Plait is about life in the Universe.

Today on Crash Course Astronomy, Phil dives into some very dark matters. The stuff we can actually observe in the universe isn’t all there is.

It’s an example of an astronomical cycle visible to the naked eye, and the first of three subjects in Episode 3 of Crash Course Astronomy, a new series by Bad Astronomy’s Phil Plait.

He's given talks about science around the world, he has appeared in several TV shows, including writing and hosting "Crash Course Astronomy," a 46-part introduction to astronomy on YouTube.

Against all odds, this new show is going to make you love physics. After the Green brothers ended their much-beloved Crash Course Astronomy series in January, fans wondered what subject the duo ...

If you’re one of the slightly celestially under-primed, get your astronomy juices flowing at some of the many pre-eclipse talks, seminars and star gazes taking place across the mountains.