Cosmos Season 2 Host Casting:  There are billions and billions of stars in our universe but only a few science stars here on earth.

Cosmos, the science show created by Carl Sagan, was rebooted with Neil deGrasse Tyson explaining all and sundry, and will hit a second season next year.

If there is a Cosmos season 2, fans are speculating who would be the host if Neil deGrasse Tyson steps down.

There is speculation that the Cosmos Season 2 might see Bill Nye, The Science Guy replace Neil deGrasse Tyson as host of the interstellar educational show.

Bill Nye the Science Guy is always the first name on that list. Bill Nye the Science Guy recently took to Reddit for a Q&A and he addressed that. Though not with the head-on precision of an interstellar comet collision.

 "I'll cross that bridge when I come to it. Why would Neil step down? Neil's a dear friend of mine, so we'd have to take a meeting," Nye said.

So, we know nothing more than we did yesterday.

Nov. 9 was Carl Sagan Day at The Center for Inquiry and its sister organization, the Committee for Skeptical Inquiry. The group worked with Dr. Sagan for twenty years, starting in 1976. The man who started it all was one of so very few celebrity scienties.

Bill Nye "the Science Guy" and Neil deGrasse Tyson, famous for both his wit and wisdom on so many appearances on Real Time With Bill Maher and The Daily Show with Jon Stewart, are the most famous scientists since Carl Sagan, the original host of Cosmos.

No one has mentioned Stephen Hawking as a possible host.

Space.com reported that Neil deGrasse Tyson won't be coming back for his host duties on Cosmos season 2. The famous physicist will continue to bring science to the masses, but a full-time job as TV host was digging into his time with his family.

In an interview with Time magazine, Neil deGrasse Tyson "We're all flattered that people are thinking [about a Season 2] but it's not clear that this was the kind of content you want to rattle off one year after the next. If some years down the line after my life has recovered, maybe. But I'd like science to be shared by all. If someone else came up and wanted to host it, I don't have any ego invested in the visibility that hosting Cosmos brought to me."

In a discussion at IMDb fans weighed the pros and cons of Bill Nye, The Science Guy against Michio Kaku and Richard Dawkins.