Последние добавленные видео:
Carl-Sagan-(Academic)
-
16 years ago
4336921 16 years ago 7:24Cosmos - Carl Sagan - 4th Dimension
-
10 months ago
49618 10 months ago 59:49The outer solar system and life - Carl Sagan's 1977 Christmas Lectures 2/6
-
6 years ago
2053317 6 years ago 1:36:01Carl Sagan's 1994 "Lost" Lecture: The Age of Exploration
-
8 years ago
823834 8 years ago 2:07:07The 1993 Bunyan Lecture: Carl Sagan - “Is There Intelligent Life on Earth?”