It’s no secret that we here at SciFiMafia are huge geeks and our love of Science Fiction and Science Fact knows no bounds… ironically, neither does our love for Felicia Day!

In the video below, Felicia explains some of the science behind galactic “collisions,” including the upcoming collision between the galaxy Andromeda and our own galaxy, in this mock behind-the-scenes look at the making of a NASA educational video for the Spitzer Science Center. Sean Astin also stars (Kind of).