Themen der The Skeptics’ Guide to the Universe Episode 649 (vom 16. Dez. 2017):
- Vergessene Helden der Wissenschaft:Kathleen Mary Drew-Baker (1901-1957)
- Donald Trumps Space Policy Directive 1
- Zecken, Dinosaurier und Bernstein
- Antartkische Extremophile
As of September 20, 2006, James Randi joined the podcast providing a pre-recorded commentary segment called „Randi Speaks“. Randi, a professional magician and skeptic, expounds upon a topic on his mind for that week which may or may not have to do with skeptical matters. The segment disappeared for a period but returned for the August 8, 2007 episode with a different format. Instead of Randi delivering a prepared essay, an SGU host asks Randi a question which Randi then answers and expands upon.