I need my space… but oh, how to get there? Whether it’s a mission to Mars or an ascent to an asteroid, we explore the hows of human spaceflight. Also, the whys, as in, why send humans to the final frontier if robots are cheaper? Neil deGrasse Tyson weighs in. Plus, the astronaut who lived on the ocean floor training for a visit to an asteroid. Also, the 100YSS – the 100 Year Starship project – and interstellar travel. And, as private rockets nip at NASA’s heels, meet one of the first tourists to purchase a (pricey) ticket-to-ride into space. Guests: Neil deGrasse Tyson – Astrophysicst, American Museum of Natural History, and author of Space Chronicles: Facing the Ultimate Frontier Shannon Walker – NASA astronaut Nathan J. Strange – Formulation system engineer at NASA’s Jet Propulsion Laboratory C. C. Culver – Former NASA mission controller, and motivational speaker with International Stars. How to contact: internationalstars@comcast.net Marc Millis – Physicist who has been NASA’s foremost expert on advanced propulsion concepts and founder of the Tau Zero Foundation Descripción en español First released February 6, 2012. Learn more about your ad choices. Visit megaphone.fm/adchoices

I need my space… but oh, how to get there? Whether it’s a mission to Mars or an ascent to an asteroid, we explore the hows of human spaceflight. Also, the whys, as in, why send humans to the final frontier if robots are cheaper? Neil deGrasse Tyson weighs in. Plus, the astronaut who lived on the ocean floor training for a visit to an asteroid. Also, the 100YSS – the 100 Year Starship project – and interstellar travel. And, as private rockets nip at NASA’s heels, meet one of the first tourists to purchase a (pricey) ticket-to-ride into space. Guests: Neil deGrasse Tyson – Astrophysicst, American Museum of Natural History, and author of Space Chronicles: Facing the Ultimate Frontier Shannon Walker – NASA astronaut Nathan J. Strange – Formulation system engineer at NASA’s Jet Propulsion Laboratory C. C. Culver – Former NASA mission controller, and motivational speaker with International Stars. How to contact: internationalstars@comcast.net Marc Millis – Physicist who has been NASA’s foremost expert on advanced propulsion concepts and founder of the Tau Zero Foundation Descripción en español First released February 6, 2012. Learn more about your ad choices. Visit megaphone.fm/adchoices