On this edition of Conversations, Joan Marie Galat talks with host Dan Skinner about “Mortimer: Rat Race to Space.” Galat is an international award-winning author of more than 25 books of both fiction and non-fiction. Her STEM-themed books include “Solve This! Wild and Wacky Challenges for the Genius Engineer in You,” “Dot to Dot in the Sky, Stories of the Aurora,” and “Dark Matters: Nature’s Reaction to Light Pollution.”