After years of rolling across the surface of Mars, little Opportunity has reached the rim of huge Endeavour Crater, where it has already found a unique rock that has given Steve Squyres and other mission leaders new passion. Emily Lakdawalla visits a New Horizons science meeting about Pluto. A planet made of diamond is just two brilliant for Bill Nye to ignore. Bruce Betts and Mat Kaplan celebrate the award of a Parsec award to Planetary Radio. They'll also award a t-shirt in another new space trivia contest.