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