Who Speaks for Earth?
- एपिसोड aired 21 दिस॰ 1980
- 1 घं
अपनी भाषा में प्लॉट जोड़ेंCarl Sagan considers the significance of science and discuss the importance of human survival in the nuclear age.Carl Sagan considers the significance of science and discuss the importance of human survival in the nuclear age.Carl Sagan considers the significance of science and discuss the importance of human survival in the nuclear age.