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Did the Chicxulub meteor that did for the dinosaurs have a smaller companion? Dr Uisdean Nicholson and Professor Sean Gulick talk to Vic Gill about the newly discovered Nadir Crater. Located on the other side of the Atlantic, it's raising questions about whether Earth was bombarded with not one, but two, meteors on the day the dinosaurs were wiped out. Back in January, the Hunga-Tonga Hunga-Ha'apai volcano in Tonga erupted explosively, triggering a massive tsunami across the Pacific. Now, engineers are remotely scanning the volcano from 16,000km away in Essex. Ashley Skett from SEA-KIT International and Dr Mike Williams from NIWA describe how a robotic vessel is mapping the Tongan seabed. And we get to the bottom of the mystery surrounding a 500-million-year-old fossil…quite literally. The microscopic, fossilised beast, which has no anus, was previously thought to be our earliest known ancestor. Emily Carlisle from the University of Bristol explains how the theory was debunked. Presented by Victoria Gill Reporting by Emily Bird Produced by Alex Mansfield
Emily Carlisle talks about how decreasing the amount of food we waste is a climate solution. Music: "Inspire" by Benjamin Tissot www.bensound.com (Royalty Free Music)
In this week's episode of GradCast, we present Part 1 of our 2 part series from the Western Research Forum, Western University's largest interdisciplinary showcase of research. Every year, the Society of Graduate Students presents a day-long conference filled with talks from faculties around campus, all associated with the theme of the year. WRF 2018 is all about Controversy. Navaneeth and Yimin chat with WRF 2018 organizer Emily Carlisle, about Controversy and how it is to organize such a big event. We also chat with keynote speaker Dr. Shelley McKellar from History of Medicine at Western. Dr. McKellar gave an engaging talk about the controversy-laden and boundary-breaking invention, the artificial heart, a topic of her new book "Artificial Hearts: The Allure and Ambivalence of a Controversial Medical technology". Hosts: Yimin Chen & Navaneeth Mohan Produced by: Susan Anthony