It’s been said that while almost no one bought the Velvet Underground’s albums, everyone who did started their own band. It seems you could say something similar about the TV show Firefly, which has inspired numerous sci-fi space operas, including R.E. Stearns’ Barbary Station, T.J. Berry’s Space Unicorn Blues, and Mike Brooks’ Dark Deeds. But while you might think the same of the sci-fi space opera Stars Uncharted (paperback, Kindle) by S.K. Dunstall — or, as they’re known to their friends, sisters Sherylyn and Karen Dunstall — in the following email interview, the duo confess they’d never saw Firefly until someone pointed out the similarities to their new book.