Many thanks to Gold for this find!
Felicia Day 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. Starring Felicia Day (“The Guild,” “Do You Wanna Date My Avatar”) and Sean Astin (“Lord of the Rings” Trilogy, “Special Agent Oso”).
Met her at Dragon*Con. Professional and focused. Very impressive.