Bioengineers are creating human body parts to replace organs and manage life-threatening diseases. How techniques like 3-D printing and stem cell research are driving medical advances and raising ethical questions
Guest Host: Susan Page
President Obama plans to dramatically scale back NASA’s return-to-the-moon program to make way for implementing a new vision for the space agency. A group of astronauts led by Neil Armstrong opposes the move, but astronaut Buzz Aldrin and others believe it will propel the U.S. to the forefront of space exploration. A look at the future of NASA.
- Scott Pace diretor, Space Policy Institute, and professor of the practice of international affairs, George Washington University.
- Pat Duggins news director, Alabama Public Radio; author, "Final Countdown: NASA and the End of the Space Shuttle Program," and "Trailblazing Mars: NASA's Next Giant Leap."
- Marc Kaufman reporter on the national desk of The Washington Post, covering NASA and space; author of a forthcoming book on astrobiology, the search for life beyond earth.
- James Kitfield senior correspondent, "National Journal" magazine.
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