Plate Tectonics

Misha Glenny and guests discuss one of the wonders of the natural world. In 1875 in the western Pacific, the crew of HMS Challenger discovered the Mariana Trench which turned out to be deeper than Everest is high, by two kilometres. Trenches like Mariana form when one tectonic pl ...  Show more

Melvyn Bragg and guests discuss the evolution of lungs and of the first breaths, which can be traced back 400 million years to when animal life spread from rock pools and swamps onto land, as some fish found an evolutionary advantage in getting their oxygen from air rather than w ...  Show more

How are mountains made? What causes an earthquake? How does hot lava come bubbling up? The answer in each case is…tectonic plates! These are giant, moving slabs of rock covering the Earth’s surface. When they slide past or smash into each other it shakes the planet. But, they als ...  Show more

It’s time to get jazzed about Earth science again. It’s only been 60 or so years since we’ve known the continents move around and we’re still figuring out exactly how they do. But one thing is for sure, that super-slow movement is super important.See omnystudio.com/listener for p ...  Show more

Encore episode. The surface of the Earth is constantly recycled through the motion of plate tectonics. So how do researchers study what it used to look like? Planetary scientist Roger Fu talks to host Maddie Sofia about hunting for rocks that can tell us what Earth looked like a ...  Show more

Melvyn Bragg and guests discuss the study of earthquakes. A massive earthquake in 1755 devastated Lisbon, and this disaster helped inspire a new science of seismology which intensified after San Francisco in 1906 and advanced even further with the need to monitor nuclear tests ar ...  Show more