Carl Sagan testifying before Congress in 1985 on climate change carlsagandotcom 16:54 2 years ago 3 365 846 Скачать Далее
Carl Sagan teaching students about the Milky Way galaxy carlsagandotcom 0:59 1 year ago 462 245 Скачать Далее
The 1993 Bunyan Lecture: Carl Sagan - “Is There Intelligent Life on Earth?” Stanford Physics 2:07:07 7 years ago 763 915 Скачать Далее
Why is the grass green? - Carl Sagan on The Tonight Show with Johnny Carson 1977 carlsagandotcom 0:59 2 years ago 839 851 Скачать Далее
Carl Sagan Predicted The Mess 2021 Would Be 25 years Ago MSNBC 4:14 3 years ago 5 630 685 Скачать Далее
Astronomer Carl Sagan talks about Radio waves #astrophysics The Science Fact 0:35 1 year ago 9 675 348 Скачать Далее
Carl Sagan discussing Nuclear Winter with congress 1985 carlsagandotcom 0:25 1 year ago 174 487 Скачать Далее
Astronomer Carl Sagan on children and their curious questions #astrophysics The Science Fact 0:29 1 year ago 40 577 714 Скачать Далее
Carl Sagan Lecture Series: Reflections of human influence on the land surface AGU 59:46 3 years ago 522 Скачать Далее
Carl Sagan explains how the Ancient Greek knew the earth was round carlsagandotcom 0:53 2 years ago 8 347 949 Скачать Далее
