How did Fritz Zwicky appear in Cosmos?
May 3, 2015 5:40 PM Subscribe
In the last episode of the new Cosmos series, (someone portraying) Fritz Zwicky appears briefly, to sort of stare and blink and then make a gesture like this. He died in 1974. What is the source of this footage? Is it an actor (with an oddly non-speaking role, and no acknowledgment yet on IMDB), some sort of CGI magic from photos, or archival footage? Our household is unreasonably curious about this.