A Japanese playing card company called Nintendo enters gaming. To stay competitive in a modernizing Japan, their portfolio expanded to include toys and into the arcade. And the company hit it big with Donkey Kong and Super Mario, then later takes over home gaming with the Nintendo Entertainment System.

Inspired by Dungeons and Dragons, adventure and role-playing computer games introduce unprecedented levels of choice and complexity to players.

Nintendo was like an impossibly huge wall. But if Mario was the undisputed king, an underdog was about to declare war. For Japanese game maker Sega, mainly known for its arcade cabinets, the battle was about winning the home console market. Sega's Genesis console and its speedy character, Sonic, hit the market.
In the early '80s, sports video games existed, but they didn't really look real. And one visionary entrepreneur had already started tackling the challenge of taking sports from the stadium onto the screen. Electronic Arts kicks off a partnership with football legend John Madden.

Street Fighter and Mortal Kombat give rise to head-to-head fighting genre, but the increasing graphic violence in games brings controversy.

Nintendo goes 3D with Star Fox. Wolfenstein 3D popularizes the first-person shooter format, while Doom ups the ante with networked gaming. 'High Score' is a crash course on the golden age of gaming filled with insightful interviews, brilliant writing, and most importantly, an inspiring and inclusive message.

In astronomy, we've been looking at different kinds of light and opening up the universe a little bit more of the time. But then in 2015, the roof came off. Something happened that changed everything, the ability to see waves in space and time itself. Gravitational waves help us roll back the clock to the dawn of time, discover epic cosmic collisions, on make Earth-shaking discoveries. Gravitational waves are the biggest game changer since the invention of the telescope. We have a completely new universe to view now. A new exploration of space is just beginning.