This image,made by the Magellan radar-mapping spacecraft in early 1991,demonstrates several events in the formation of the surface of Venus. The oldest events were the formation of domes and ridges by sub-surface lava movements. The valleys between the ridges were then filled with radar- dark lava flows. Following this,a series of fractures extended across the surface. Finally,a relatively recent meteorite impact caused the 60km-wide crater at bottom right. This image covers an area of about 600km by 545km,and is part of the Ovda Regio in the equatorial continent Aphrodite Terra | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / NASA |
Taille de l’image : | 4683 px × 4038 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |