Episode 2

This episode was centered on the ideas of natural selection and how the universe evolved. Sagan spends some time addressing the idea of intelligent design and then goes on the explain some of the likely cases for extraterrestrial life. I thought it was interesting how he laid out the potential criteria for a planet, or any extra solar body, to sustain life. I had never considered the importance of dna on the evolution of life and would certainly not have put it as an essential part of lifes ability to develop.