Houston, we have a podcast. Today, Apollo 13 author Jeffrey Kluger drops in to talk about the Apollo missions, what really made it on the film, and his new book, Gemini: Stepping Stone to the Moon, the Untold Story.

About our guest:

Jeffrey Kluger, editor at large, oversees TIME's science and technology reporting. He has written or co-written more than 40 cover stories for the magazine and regularly contributes articles and commentary on science, behavior and health. Kluger is the co-author, with astronaut Jim Lovell, of Lost Moon: The Perilous Voyage of Apollo 13, which was the basis of the Apollo 13 movie released in 1995. He is the sole author of seven other books, including The Sibling Effect, published in 2011, and two novels for young adults. Other books include Splendid Solution, published in 2006, which tells the story of Jonas Salk and the polio vaccine; and the 2008 Hyperion release Simplexity: Why Simple Things Become Complex (and Why Complex Things Can Be Made Simple). Before joining TIME, Kluger was a staff writer for Discover magazine, where he wrote the "Light Elements" humor column, and he was also an editor for the New York TimesBusiness World Magazine, Family Circle and Science Digest.Kluger, who is also an attorney, has taught science journalism at New York University.