Harvard theoretical physicist Lisa Randall joins us to discuss her book "Dark Matter and the Dinosaurs." Randall thinks that dark matter is linked to the disappearance of the dinosaurs, and ultimately, humans' appearance on earth. We'll discuss Randall's book and the connection she draws between the science of dark matter and the importance of empathy.
Rebroadcast: Dark Matter Killed the Dinosaurs and Helped Our Species Emerge
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Lisa Randall, professor of science, Harvard University; author of "Dark Matter and the Dinosaurs: The Astounding Interconnectedness of the Universe"