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The space adventure > Magellan II


Two details of the surface of Venus 
Credit : NASA

The mapping of Venus revealed the existence of volcanoes on the surface of this planet. 

Above left, the gigantic volcano Golubkina 30 km in diameter; at right, a series of volcanoes (Domical hills of Alpha Regio) shaped as pancakes of 25 km in diameter and 750 m high.