Algorithms are the sets of steps necessary to complete computation. Algorithms are the sets of steps necessary to complete computation - they are at the heart of what our devices actually do. And this ...

OK, over the past eight episodes of Crash Course Astronomy we’ve covered a lot of basics: What you can see, how you can see it, and how some basic forces sculpt what’s out there. So. What’s out there?

In 2011, brothers John and Hank Green created an educational YouTube channel called “Crash Course” with the goal of spreading high-quality educational videos for everyone, free of charge. A year later ...