Nuclear Winter with Ann Druyan and Brian Toon
StarTalk Radio
What Happened When an Asteroid Hit the Earth?
In about 19 80, i was studying volcanic eruptions ind the climate of the earth. We had thought about nuclear weapons, and hadn't really thought of any way they could do anything terrible to the climate. But then the alvarez group at berkeley discovered that an asteroid had hit the earth 66 million years ago and killed the dinosaurs. And iwe concluded,. welliso because of the debris in the atmosphere from the impact, were wey. Just to be clear, an asteroid hitting the earth kills any dinosaur where the crater is. But this one killed all the dinosaurs on all the earth.
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