When NASA's Jet Propulsion Laboratory wanted a spokes-AI to
explain how fusion and fission work, they tapped GLaDOS, the
science-loving antagonist from the Portal games. But once GLaDOS
gets inside NASA, can anyone stop her?  Ellen McLain, the
actress who voices GLaDOS, reprises her role in this educational
sketch for the education & public outreach department of NASA's
Spitzer Space Telescope. It's nice to see that GLaDOS' affection
for science is so great that she earnestly educates her ignorant
computer technicians on the wonders of physics even as she
otherwise attempts to deceive them—and that, even without Chell
as a target, she'll still indulge in a bit of psychological
mayhem.  [via The Mary Sue]