Actor, comedian, and rational optimist, Wayne Federman, known for many films, "Knocked up," "Funny People," and the upcoming "The House" and way more, stops by to tell an IPA loaded Griff and Kevin why he loves science, his attraction to rational optimism, and the proper way to name freeways.

Prof. Ed Stone, one of the most accomplished and decorated scientists of our time, joins Kevin and Jimmy to break down the spectacular news about the Jovian moon Europa (the forbidden moon in the movie 2010.) Not only do we now have proof that it has a salty ocean, but it is spraying out water geysers on to the surface and into space. Searching for life on the moon, may not require drilling into miles thick of ice sheets that cover.

Matt Kirshen is a British comedian, but like Kevin, started off in the hard sciences, in his case, math (or as he calls it, maths). He has his own science and comedy podcast called Probably Science. Matt gives Jimmy, Kevin and Griff his take on Brexit, rockets, and the time he got burned by Buzz Aldrin. Also, Pico the Chihuahua make his debut bark.

Kevin and Griff introduce Jimmy to former guest, Prof. Hakeem Oluseyi, host of Outrageous Acts of Science. Conversation volleys back and forth wildly as the Olympics keep distracting the crew from any possible resolution of Susskin's famed ER = EPR conjecture.

To help announce an amazing new discovery: a new exoplanet about the same as planet earth potentially habitable, Griff and Kevin meet with Caltech postdoc Dr. Courtney Dressing. The planet orbits the pale red dwarf star named Proxima Centauri visible only in the southern hemisphere.

While visiting Princeton, Kevin stops by Rutgers to talk to former Caltech theoretical particle physicist Professor Mathew about so disappointing news from the Large Hadron Collider. All the promising signs of a new super-massive scalar previously discussed on SYJ with Prof. Maria Spiropulu, have all collapsed with new data. The two also discuss whether we should hold Owen up to his promis to shot his own foot.

Brian Brophy has been over 40 films and TV shows. Brian played one of the top rated Star Trek villains hallmarked by an incredible scene opposite Patrick Stuart debating the definitions of life and consciousness. He's taken his vast acting experience to the Caltech theater department, where he helped produce the first Star Trek musical, "Boldly Go", and also to budding actor Jimmy, and want-to-be actors Griff and Kevin. Speaking of questionable intelligence, the SYJ crew also bemoans the new phenomenon of Pokémon Go, which already sucked in Jimmy. That's two things that end in Go. Weird.

Don't call me "Surely!" Uh, or is that "Shirley?" Jerry Zucker joins Jimmy, Owen and Kevin to discuss the important question of whether the internet teaches science as well as Scooby Doo. Zucker is the awesome force behind hits like Airplane! And Naked Gun (“big in Hong Kong!”), yet Kevin repeatedly fails to pronounce his name correctly. (You will never forget after you learn the secret.) The origins of the Science and Entertainment Exchange as a beacon of light against an age of anti-science darkness, are also revealed.

Ex-physicist and current expert maker, Daniel Busby, stops in to talk about the extensive and ridiculously creative list of projects he has going on. Daniel and his inventive genius have been featured on the Science Channel, "Extreme Makeover: Home Edition", and in the viral OK GO video "This too shall Pass" featuring an amazing real life Rube Goldberg Machine.

Kevin's buddy from school, Prof. Peter Plavchan, visiting from Missouri, and comedian Richard Chassler, join Owen and Kevin in Hollywood, to talk about a weird planetary system discovered by the Kepler Space Telescope, which Peter uses to study distant solar systems. Some have found this particular system to be so odd, that it may be evidence of an enormous alien mega-structure surrounding the distant star. Or not.