Journey Of The Universe: Conversations, Episode 19, Teaching Journey of the Universe
directed by Patsy Northcutt; produced by Patsy Northcutt, Yale School of Forestry & Environmental Studies and Northcutt Productions; interview by Mary Evelyn Tucker, in Journey Of The Universe: Conversations, Episode 19 (Pottstown, PA: Music Video Distributors, 2013), 37 mins