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 look at ...

Massive stars fuse heavier elements in their cores than lower mass stars. Massive stars fuse heavier elements in their cores than lower mass stars. This leads to the creation of heavier elements up to ...

I’ve been hinting for some time about a secret project I’ve been working on, and the time has finally come to announce it: I’m writing and hosting an online astronomy video series! The series will air ...

Last week’s Crash Course Astronomy was particularly fun for me, because I love the topic of exoplanets. It’s one of my favorite new fields of astronomy. But not my only favorite. Another is brown ...

Throughout the year, as Earth progresses through its orbit around the sun, one can witness stars in the night sky rise and set at different times. It’s an example of an astronomical cycle visible to ...

Astronomy isn’t just for “Big Bang Theory” enthusiasts. But unfortunately, so many of us take for granted the endless swath of protection and ever-changing colors and shapes over our heads, until ...

Crash course: Astronomy FROM ancient Egyptians who aligned their pyramids to the pole star through to the present-day Nasa mission to Mars, the night sky has fascinated us for millennia.