When the "Star Trek" actor and America's favorite astrophysicist share the stage, sparks can fly on an astronomical level.

Astrophysicist Neil deGrasse Tyson laughs as “Star Trek” captain William Shatner tells a tale during a fireside chat at McCaw Hall in Seattle. (Mat Hayward Photo / Future of Space) William Shatner set ...

That’s the subject of astrophysicist and “Cosmos” host Neil deGrasse Tyson’s upcoming lecture at the University of Virginia’s ...

In L.A. to talk about a new book, the astrophysicist, author, podcaster and all-around spokesman for science has stories to share.