A Writer's 'Martian Summer' On Earth

In the summer of 2008, Brooklyn writer Andrew Kessler spent three months among the scientists and engineers who were exploring the small grains and vast vistas of Mars through the lenses and limbs of NASA's Phoenix Mars Lander without ever leaving mission control in Tucson. Scott Simon talks with Kessler about his book Martian Summer: Robot Arms, Cowboy Spacemen, and My 90 Days with the Phoenix Mars Mission.