5 ms·
Carl Sagan talks about this in his series "Cosmos": https://www.youtube.com/watch?v=cq5qojfB4P0 https://www.youtube.com/watch?v=cq5qojfB4P0
by horshod 11y ago
Carl Sagan talks about this in his series "Cosmos":
https://www.youtube.com/watch?v=cq5qojfB4P0 https://www.youtube.com/watch?v=cq5qojfB4P0