Segment 1:Guests: Dr. Elena Belavina, associate professor, operations management, Cornell University; Jenna Harris, senior manager, donor relations & supply chain, City Harvest. The average person ends up trashing 25 percent of the food they buy from the grocery store. This cycle of food waste across households, grocery stores and restaurants adds up, resulting in more than 81 billion pounds of fresh, edible food being thrown away each year. Two food experts offer some possible solutions.https://sha.cornell.edu/faculty-research/faculty/eb733/ Segment 2:Guest: Roger Launius, space historian, former chief historian, NASA, author, NASA Space Shuttle: 40th Anniversary, tells the story of this era of American space history.https://www.nasa.gov/mission_pages/shuttle/flyout/index.html