William Gerstenmaier, Dr. Jay Keasling Tonight Stephen welcomes microbiologist and member of the Joint BioEnergy Institute, Dr. Jay Keasling. Also Stephen talks with NASA's associate administrator for space operations Bill Gerstenmaier about the Kepler Probe and other space exploration. Details Casts Galleries Posters Season Lists Title William Gerstenmaier, Dr. Jay Keasling Genres News Comedy Release Date 2009-03-10 Episode Runtime 00 Hours 24 Minutes Season Number 5 Episode Number 34 Production Companies Busboy Productions, Spartina Productions Stephen Colbert... Self - Host... Original Size (1920x1080) Original Size (1280x720) Original Size (2000x3000) Season 1 32 Episode(s) 2005-10-17 Season 2 161 Episode(s) 2006-01-09 Season 3 138 Episode(s) 2007-01-08 Season 4 160 Episode(s) 2008-01-07 Season 5 161 Episode(s) 2009-01-05 Season 6 161 Episode(s) 2010-01-04 Season 7 124 Episode(s) 2011-01-03 Season 8 155 Episode(s) 2011-10-03 Season 9 155 Episode(s) 2012-10-01 Season 10 160 Episode(s) 2013-09-30 Season 11 40 Episode(s) 2014-09-29