Way back in the late 1980s when the rocks were still cooling, I wrote a pair of novels, From a Changeling Star and Down the Stream of Stars, that proposed an interstellar highway (sort of a modified wormhole) created by the joining of two black holes with a long strand of cosmic hyperstring. That same starstream features prominently in my new work, The Reefs of Time / Crucible of Time.
Now, I read here that real scientists have proposed that one could create a real wormhole, using—are you ready?—two black holes and a couple of strands of cosmic string. Seriously, is that cool or what? God, I love science!