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