Speaking of gifts, we've got two huge presents in the form of songsters Jonathan Coulton and JohnRoderick, who will be playing a trio of brand new holiday classics off their new record, One Christmas at a Time.
Next up, things get a bit animated with Packing for Mars author Mary Roach, who will discuss the grosser side of manned space travel, while professional prognosticator (and sometimes rock musician) JohnRoderick kicks off his new reoccurring segment by explaining how space exploration helps him get out of bed in the morning.