There aren’t a lot of things the internet loves unconditionally, but on that list, right behind cats and bacon, comes the video game Portal. Created by Valve, the series challenges players with mind-bending puzzles while being taunted by a snarky, evil artificial intelligence, known as GLaDOS and voiced by actress Ellen McLain.

GLaDOS is so beloved that McLain has been enlisted for no shortage of projects riffing on Portal‘s popularity; just last year, director Guillermo del Toro cast her as the voice of the computer in Pacific Rim. But McLain’s most recent project brought her to NASA.

“Fusion vs. Fission,” stars Casey McKinnon and Mike Romo as two bumbling technicians learning the difference between fusion and fission in a kid-friendly fashion, while McLain’s evil AI formulates a plot for world domination.

While McLain is not officially playing GLaDOS in the short (she’s instead credited as “NASA’s Official…