Thousands of science fiction fans will fill Moody Gardens Hotel, Spa and Convention Center through Sunday.

It's the third generation of Space City C on in Galveston.  The first drew two thousands fans, last summer's gathering in Houston had a crowd of 11 thousand.  That has organizers expecting big things this time from a diverse crowd. 

“Artists, celebrities, writers, people in the science fiction and fantasy community,” make up the people who will be filling the venue, according to Mike Martin, a spokesperson for Turn To Productions.

Fans of Star Trek, Game of Thrones and Babylon 5 will fill the place, some of them in costumes. 

Actor Tracy Scoggins of Babylon 5 fame is a Galveston native and she apparently played a role in bringing the big show to the coastal city.

“You've got a very diverse group of fans,” Martin says.  “They love getting together, discussing comics, games, movies, television and meeting the artists.”