Young asteroids look old

Artist’s impression of how the solar wind makes young asteroids look old. After undergoing a catastrophic collision, the colour of an asteroid gets modified rapidly by the solar wind so that it resembles the mean colour of extremely old asteroids. After the first million years, the surface “tans” much more slowly. At that stage, the colour depends more on composition than on age.

Kilde:

ESO/M. Martins

Om billedet

Id:eso0916a
Type:Kunstværk
Udgivelsesdato:22. april 2009
Relaterede pressemeddelelser:eso0916
Størrelse:3447 x 1772 px

Om objektet

Navn:Asteroid
Type:Solar System : Interplanetary Body : Asteroid
Kategori:Illustrations
Solar System

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