| Date of "Big Event" |
Guest Speaker |
| 1. |
Sat., Jan. 12, 1985 |
Eugene Cernan, Gemini and Apollo Astronaut |
| 2. |
Sat., Feb. 15, 1986 |
James Lovell, Gemini and Apollo Astronaut |
| 3. |
Sat., Feb. 21, 1987 |
Lee Sentell, U.S. Space Camp and Academy |
| 4. |
Sat., Feb. 6, 1988 |
Alan Bean, Apollo & Skylab Astronaut/Space Artist |
| 5. |
Fri., Feb. 17, 1989 |
Edward 'Rocky' Kolb, Astronomer from Fermilab |
| 6. |
Sat., Jan. 27, 1990 |
Byron Lichtenberg, Space Shuttle Astronaut |
| 7. |
Sat., Feb. 23, 1991 |
Eugene Cernan, Gemini and Apollo Astronaut |
| 8. |
Sat., Feb. 8, 1992 |
Janice Voss, Astronaut Candidate |
| 9. |
Fri., June 11, 1993 |
James Kaler, Astronomer/Author |
| 10. |
Fri., April 15, 1994 |
Richard Berry, Astronomer/Former Chief Editor of Astronomy |
| 11. |
Sun., April 2, 1995 |
Bruce McCandless, Space Shuttle Astronaut |
| 12. |
Fri., March 22, 1996 |
David Levy, Astronomer/Comet Expert |
| 13. |
Sat., March 1, 1997 |
Alan Hale, Comet Expert (co-discoverer of Comet Hale-Bopp) |
| 14. |
Sat., April 18, 1998 |
Edward 'Rocky' Kolb, Astronomer from Fermilab |
| 15. |
Sat., March 13, 1999 |
Paul Sereno, Dinosaur Expert |
| 16. |
Sat., April 1, 2000 |
Fred Espenak, Solar Eclipse Expert |
| 17. |
Sat., March 3, 2001 |
Story Musgrave, Space Shuttle Astronaut |
| 18. |
Sat., April 13, 2002 |
James Oberg, Expert on the Soviet and Russian Space Program |
| 19. |
Sat., March 1, 2003 |
Rob Landis, NASA-JPL (Cassini and Mars Exploration Rover Projects) |
| 20. |
Sat., March 27, 2004 |
Story Musgrave, Space Shuttle Astronaut |
| 21. |
Sat., April 9, 2005 |
Paul Sereno, Dinosaur Expert |
| 22. |
Sat., Aug. 26, 2006 |
Paul Sirvatka, Severe Weather Expert/Storm Chaser |
| 23. |
Sat., Nov. 3, 2007 |
Stanley Ambrose, Anthropologist/Archeologist |
| 24. |
Fri., Aug. 22, 2008 |
Story Musgrave, Space Shuttle Astronaut |
| 25. |
Sat., Aug. 22, 2009 |
Galileo Galilei, 17th century Italian scientist, as portrayed by Mark Thompson. |
| 26. |
Sat., Aug. 14, 2010 |
Dr. Margaret A. Weitekamp, Author, Space Historian. |
| 27. |
Sat., Sep. 17, 2011 |
Dr. Paul Sipiera, Antarctic Meteorite researcher. |
| 28. |
Sat., Sep. 8, 2012 |
Brother Guy Consolmagno, Astronomer and planetary scientist at the Vatican Observatory. |