Guest Stars Neil deGrasse Tyson as Himself Bill Nye as Himself Lisa Dang as Herself Kielan Wilcomb as Herself Dan Coe as Himself Mike Massimino as Himself Cathy Menzel as Herself Dan Goldin as Himself Thomas Megeath as Himself Klaus Pontoppidan as Himself William Nelson as Himself (Bill Nelson) Joseph DePasquale as Himself Alyssa Pagan as Herself Scarlin Hernandez as Herself Javier Alvarez Marquez as Himself Steven Longmore as Himself Stefano Facchini as Himself Amber Straughn as Herself Yuichi Harikane as Himself Peter Abraham as Himself Yao-Lun Yang as Himself Dr. Thomas Zurbuchen as Himself Dr. Becky Smethurst as Herself Saurabh Jha as Himself Seiji Fujimoto as Himself Mike Menzel as Himself
