“Why is Venus scorching hot? It's because…the flow of energy is blocked by a dense atmosphere of carbon dioxide….Venus is in the grip of a runaway greenhouse effect.”
More from Ann Druyan
“There seems to be a mysterious force in the universe, one that overwhelms gravity on the…”
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“The essential message of life has been copied and recopied for more than 3 billion years.…”
“I could be thousands of miles away, and yet, when you turn on whatever device is bringing…”