Explanation: Ganymede's surface is a wrinkled mess. As large ice-sheets shift on the moon's surface, parts of the surface buckle causing high ridges, deep furrows, and parallel grooves. This photo, taken by the Galileo spacecraft currently orbiting Jupiter, was released yesterday. The large circular feature near the picture bottom is a large impact crater. The impact that caused this large crater also caused the strange dark ejecta seen to the crater's right. The Sun illuminates the scene from the lower left. The Galileo spacecraft has also just discovered that Ganymede has a region of orbiting charged particles called a magnetosphere - a first for any moon. How Ganymede is able to generate a magnetosphere is a mystery.

APOD's Archive of Galileo at Ganymede

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Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (USRA)
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Publikacii s klyuchevymi slovami: gora - dolina - Ganimed - udarnyi krater Publikacii so slovami: gora - dolina - Ganimed - udarnyi krater
Sm. takzhe: Udarnyi krater Manikuagan: vid iz kosmosa Ganimed ot "Yunony" V teni Ganimeda Mlechnyi Put' nad erozionnymi stolbami v Francuzskih Al'pah "Yunona": polet nad Ganimedom i Yupiterom Udarnyi krater Manikuagan Ganimed: samyi bol'shoi sputnik Vse publikacii na tu zhe temu >>