The host of COSMOS: A Spacetime Odyssey, returns to our show with a behind the scenes look at the spectacular television series. Neil also tells us what he’ll tackle next. Emily Lakdawalla says it’s hard to tell who is king of the Kuiper Belt, Eris or Pluto? Bill Nye the Science Guy is headed to Washington for talks with the NASA Administrator. We’ll learn Bruce Betts’ new title as he sets up this week’s What’s Up space trivia contest that offers a littleBits Space Kit.