Penn Fraser Jillette is an American magician/illusionist, juggler, comedian, musician, inventor, actor, filmmaker, television personality and best-selling author known for his work with fellow magician Teller as half of the team Penn & Teller. The duo have been featured in numerous stage and television shows such as Penn & Teller: Fool Us, and Penn & Teller: Bullshit, and are currently headlining in Las Vegas at The Rio. Jillette serves as the act's orator and raconteur.
Carl Edward Sagan was an American astronomer, cosmologist, astrophysicist, astrobiologist, author, science popularizer, and science communicator in astronomy and other natural sciences. He is best known for his work as a science popularizer and communicator. His best known scientific contribution is research on extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation. Sagan assembled the first physical messages sent into space: the Pioneer plaque and the Voyager Golden Record, universal messages that could potentially be understood by any extraterrestrial intelligence that might find them. Sagan argued the now accepted hypothesis that the high surface temperatures of Venus can be attributed to and calculated using the greenhouse effect.
Pearl Zane Grey was an American author and dentist best known for his popular adventure novels and stories associated with the Western genre in literature and the arts; he idealized the American frontier. Riders of the Purple Sage was his best-selling book. In addition to the commercial success of his printed works, they had second lives and continuing influence when adapted as films and television productions. His novels and short stories have been adapted into 112 films, two television episodes, and a television series, Dick Powell's Zane Grey Theater.