Planetary science - for iPod/iPhone

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.

Episodes

Planetary science

April 13, 2010 • 1 min

A short introduction to this album.

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Transcript -- Planetary science

April 12, 2010

Transcript -- A short introduction to this album.

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The Nature of Impacts

January 23, 2009 • 5 mins

What happens when an asteroid crashes into a planet? Geologists investigate the causes of the Reis crater in Germany.

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Reconstructing the Impact

January 23, 2009 • 2 mins

The devastation caused in just 5 minutes when an asteroid smashes into the Earth.

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Low Angle Impacts

January 23, 2009 • 1 min

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

January 23, 2009 • 2 mins

Impacts can have massive environmental effects, for example, the meteor explosion above Tunguska, Siberia.

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The Pacific Ocean Explosion

January 23, 2009 • 2 mins

Japanese fishermen witness a 20 kiloton event. But what size impact could cause mass extinction on Earth?

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Transcript -- The Nature of Impacts

January 23, 2009

Transcript -- 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

January 23, 2009 • 4 mins

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

January 23, 2009

Transcript -- When an asteroid penetrates the Earth's surface, it incredible temperatures and shockwaves transform the landscape.

Mark as Played

Transcript -- Reconstructing the Impact

January 23, 2009

Transcript -- The devastation caused in just 5 minutes when an asteroid smashes into the Earth.

Mark as Played

Transcript -- Low Angle Impacts

January 23, 2009

Transcript -- Comparing the size and shape of craters on Earth and other planets. Special focus on the Rio Quarto crater in Argentina.

Mark as Played

Transcript -- The Consequences on Earth

January 23, 2009

Transcript -- Impacts can have massive environmental effects, for example, the meteor explosion above Tunguska, Siberia.

Mark as Played

Transcript -- The Pacific Ocean Explosion

January 23, 2009

Transcript -- Japanese fishermen witness a 20 kiloton event. But what size impact could cause mass extinction on Earth?

Mark as Played

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Planetary science - for iPod/iPhone

Episodes

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.css-r6mb8g{margin:0;word-break:break-word;display:-webkit-box;-webkit-box-orient:vertical;box-orient:vertical;-webkit-line-clamp:1;overflow:hidden;}Transcript -- Planetary science

The Nature of Impacts

Reconstructing the Impact

Low Angle Impacts

The Consequences on Earth

The Pacific Ocean Explosion

Transcript -- The Nature of Impacts

The Formation of Craters

Transcript -- The Formation of Craters

Transcript -- Reconstructing the Impact

Transcript -- Low Angle Impacts

Transcript -- The Consequences on Earth

Transcript -- The Pacific Ocean Explosion

Popular Podcasts

Planetary science

Transcript -- Planetary science