太阳系的诞生 Jeff Hester ... Himself - ASU (as Professor Jeff Hester) Michelle Thaller ... Herself - Cal Tech (as Dr. Michelle Thaller) Stan Woosley ... Himself - UC Santa Cruz (as Dr. Stan Woosley) Peter Tsou ... Himself - NASA (as Dr. Peter Tsou) Jack Lissauer ... Himself (as Dr. Jack Lissauer) Steve Desch ... Himself - Arizona State University Gary Lofgren ... Himself - NASA Hal Levison ... Himself - Southwest Research Institute David Kring ... Himself - University of Arizona rest of cast listed alphabetically: Don Pettit ... Himself - Astronaut (archive footage)