1. Neil deGrasse Tyson first met Carl Sagan as a teenager in 1975.
2. Seth McFarlane is secretly a bit of a science geek.
3. McFarlane even lends his voice to some of the historical scientific 'heroes' in the programme.
4. Two asteroids named after Ann Druyan and Carl Sagan are locked in perpetual "wedding-ring" orbit around the sun.
Carl Sagan and Ann Druyan met while working on the Voyager Golden Record – a message humanity sent to the stars, filled with music and greetings from around the world. They later married and worked together on the first series of Cosmos that aired on PBS in 1980.
Sagan died in 1996. When Druyan, who is writer and executive producer of the series, decided to reboot Cosmos for a new generation, Tyson really was the only choice for presenter. "It would have been unthinkable to do it with anyone but Neil," she says.