Podcasts by Planetary science - for iPad/Mac/PC
Our planet is at the centre of a cosmic shooting gallery. This album examines the evidence for and effect of asteroid impacts and meteor explosions on Earth. The 6 video tracks assess the environmental effects caused by bolides of different sizes and trajectories. How do scientists detect that a crater on Earth is the result of an asteroid impact? Ian Gilmour visits an unusual circular feature at Nordingen in Southern Germany and Peter Schultz describes the oblique impact at Rio Quarto in Argentina. When comets collide with planets, the consequences can be catastrophic. What kind of impact could cause mass extinction on earth?
This material forms part of The Open University course S283 Planetary science and the search for life.
Further podcasts by The Open University
Podcast on the topic Kurse
All episodes
The Nature of Impacts from 2009-01-23T03:03:44
What happens when an asteroid crashes into a planet? Geologists investigate the causes of the Reis crater in Germany.
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Transcript -- The Nature of Impacts from 2009-01-23T03:03:43
What happens when an asteroid crashes into a planet? Geologists investigate the causes of the Reis crater in Germany.
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The Formation of Craters from 2009-01-23T03:02:44
When an asteroid penetrates the Earth's surface, it incredible temperatures and shockwaves transform the landscape.
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Transcript -- The Formation of Craters from 2009-01-23T03:02:43
When an asteroid penetrates the Earth's surface, it incredible temperatures and shockwaves transform the landscape.
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Reconstructing the Impact from 2009-01-23T03:01:44
The devastation caused in just 5 minutes when an asteroid smashes into the Earth.
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Transcript -- Reconstructing the Impact from 2009-01-23T03:01:43
The devastation caused in just 5 minutes when an asteroid smashes into the Earth.
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Transcript -- Low Angle Impacts from 2009-01-23T03:00:43
Comparing the size and shape of craters on Earth and other planets. Special focus on the Rio Quarto crater in Argentina.
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The Consequences on Earth from 2009-01-23T02:59:44
Impacts can have massive environmental effects, for example, the meteor explosion above Tunguska, Siberia.
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Transcript -- The Consequences on Earth from 2009-01-23T02:59:43
Impacts can have massive environmental effects, for example, the meteor explosion above Tunguska, Siberia.
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The Pacific Ocean Explosion from 2009-01-23T02:58:44
Japanese fishermen witness a 20 kiloton event. But what size impact could cause mass extinction on Earth?
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Transcript -- The Pacific Ocean Explosion from 2009-01-23T02:58:43
Transcript -- Japanese fishermen witness a 20 kiloton event. But what size impact could cause mass extinction on Earth?
Listen
Transcript -- The Pacific Ocean Explosion from 2009-01-23T02:58:43
Japanese fishermen witness a 20 kiloton event. But what size impact could cause mass extinction on Earth?
Listen
Transcript -- The Pacific Ocean Explosion from 2009-01-23T02:58:43
Transcript -- Japanese fishermen witness a 20 kiloton event. But what size impact could cause mass extinction on Earth?
Listen