Department Of Earth And Planetary Science, Roger Slam, Roger Fhu discussed on Short Wave
Imagine you're floating over the earth. Say a couple billion years ago. What would you recognize large bodies of water? We don't know how much land there was back then but there was definitely some. If you ask Roger Fhu it might look surprisingly familiar. So you'll probably see the same hands. A mountain belts bally's and rift basins. You might see today. Rogers a professor in the Department of Earth and Planetary Science at Harvard University. He says you'll also notice. Earth isn't covered in craters by other planets. Are that different stems from an effect. The Earth services constantly recycling itself through action plate tectonics plate tectonics. We all remember learning about it. Kind of Roger. I'm Mike Biologists and a half to be honest with you. I read your paper and I was like. Oh Buddy. You are not in biology anymore. The only reason I know of plate tectonics was because our high school. Did this. Nerdy Ocean Science Competition like Buzzer like jeopardy style. And we all kind of read textbooks in her spare time. That's what spare time is four eventually all that extra reading paid off because Roger Slam recently published a study showing that the earth's tectonic plates started shifting hundreds of millions of years earlier than we thought which is important because by knowing when though shifts happened we can say something more about the environment in which life evolved so today on the show. Roger Food tells us how we know what was happening with. Earth's tectonic plates billions of years ago and how the action of these plates set the stage for evolution of life. As we know it I'm Mattie Safai and this is short wave the daily science podcast from NPR.