Did you know that the sunlight you see and feel on this beautiful Utah day is not only the welcomed rays of an early spring that light is also thousands of years old! You are basking in ancient light!
That's just one of the amazing science facts in a video that explains the difference between fusion and fission energy. NASA produced and posted the video earlier this month. And as a wonderfully pleasant surprise, the one dropping the knowledge is none other than GLaDOS, popular villain of the "Portal" video game series.
In the games, GLaDOS is a science-obsessed artificial intelligence who turns into a witty and murderous psychopath. Her homicidal tendencies are restrained in NASA's video, considering the limitations of her new home on a run-of-the-mill office computer. So until a couple of earnest (and foolish) humans can finish hooking her up to the NASA servers and doom us all, she focuses on her first passion science and explains how the sun works.