Sagan dictating a draft NASA exobiology grant proposal — discusses amino acids, tholins, and methane in Titan's atmosphere; representative of how Sagan composed first drafts.

Sagan's second Royal Institution Christmas Lecture in the 1977 'Planets' series, on the giant planets and the search for life.

Sagan's first Royal Institution Christmas Lecture in the 1977 'Planets' series, broadcast on BBC2 in early 1978.