Code.org today unveiled the theme for this year's Hour of Code, "Make the Invisible, Visible," celebrating computer science as the invisible force that powers all of the things that students' love ...

It just teamed up with Code.org to introduce the Minecraft Hour of Code Designer, a tutorial that teaches young newcomers (6 years old and up) how to create a simple game.

Code.org wants to make computer science a staple of the classroom, and it's taking a big step toward that goal today with the launch of its Hour of Code campaign. More than 30,000 US schools ...