Forty-eight episodes, more than eight hours of content, 100,000 words, a year and a half of work, topics ranging from quantum fluctuations to the death of the Universe, and 12 million views … finally, ...

Mercury is the closest planet to the sun. Mercury is the closest planet to the sun. It has no atmosphere and is, as such, covered in craters. It's also incredibly hot but, surprisingly, has water ice ...

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 ...

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 would ...

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 ...