Author(s)
Date de production
2008-01-01
View the series
© CNRS Images - 2008
Reference
3365
Why are Mars and Venus so different from the Earth?
Series
Planet Earth Below the Surface
While large, relatively young volcanoes can be found on Venus, those on Mars are very old. The Earth also has many volcanoes on its surface but its great originality, compared to its two direct neighbours, lies in plate tectonics. Why are Mars and Venus so geologically different? How can we explain why the red planet's magnetic field quickly went out? What were the consequences on its evolution?
Francis Albarède, a geochemist at the Earth Sciences Laboratory in Lyon, explains.
Duration
240
Production year
Définition
SD
Color
Color
Sound
Sound
Versions
French
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