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, ...

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 ...

Astronomy as a science is pretty tough to define these days. I actually point that out in the first episode of Crash Course Astronomy; if I observe Mars using my backyard telescope, I’m doing ...

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 ...

Active galaxies pour out lots of energy. Active galaxies pour out lots of energy, due to their central supermassive black holes gobbling down matter. Galaxies tend not to be loners, but instead exist ...

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 Big History is back! It turns out, we couldn't tell all of the 13.8 billion years of the history of the universe in 10 Crash Course Episodes. So, Big History host Emily Graslie has ...

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 ...

In this series, YouTube Icon, Entrepreneur speaks with the individuals behind popular YouTube channels to find out the secrets of their success. While Nicole Sweeney was getting her masters degree ...

The deliberate 14,000-mph crash of a small NASA probe into the asteroid Dimorphos two weeks ago nudged the 525-foot-wide body onto a slightly different course, NASA confirmed Tuesday — shaving 32 ...

YouTube, Arizona State University and "Crash Course" — the popular educational YouTube channel founded by vloggers Hank and John Green — on Tuesday announced the launch of Study Hall, a pathway to ...