Carl Sagan on radio astronomy & the Drake Equation XXXSDESDEXXX 9:49 16 years ago 16 608 Скачать Далее
The Drake Equation After Sixty Years | Part 1 of 2 Cool Worlds 23:53 3 years ago 192 080 Скачать Далее
Astronomy - Ch. 30: Life in the Universe? (10 of 20) The Drake Equation-A New Estimate Michel van Biezen 6:07 4 years ago 7 989 Скачать Далее
Why Any Solution to the Drake Equation is Scary No Matter the Answer Astrum 18:02 2 years ago 691 436 Скачать Далее
The Drake Equation and the Search for Extraterrestrial Life FORA.tv 3:32 16 years ago 9 591 Скачать Далее
Nuclear Winter, Carl Sagan, & The Drake Equation with Neil deGrasse Tyson, Ann Druyan, & Brian Toon StarTalk 59:37 1 year ago 323 608 Скачать Далее
8.6 Drake Equation [Astronomy: State of the Art] Astronomy: State of the Art 8:12 11 years ago 168 Скачать Далее
