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)