Astrophysicist and science communicator Neil deGrasse Tyson spills on his obsession with aliens and the best and worst Hollywood depictions of them.

There’s no denying the allure of alien artifacts. Science fiction is awash in the material remnants of extraterrestrial civilizations, which surface in everything from the classic books of Arthur C.

Still with the distance. Look at my previous post, ya narcissists. We are smart. Doesn't mean things we can't do can't be done. I agree, there is no way to travel fast enough to Star Trek around ...