Wind blows material ejected from crater on Venus

Wind blows material ejected from crater on Venus

Fig. 7.5 . A radar image of Avidar Crater is surrounded by streamlined, horseshoe or parabolic shapes (top and bottom right) and a bright, jet-like streak (center left) that extends over the surrounding plains. These unusual features, seen only on Venus, are believed to result from the interaction of ejected debris and high-speed winds in the upper atmosphere, blowing from the east (right). The crater is 30 kilometers in diameter, and is named for the Turkish educator and author Halide Adivar; it is located at 9 degrees north latitude and 76 degrees east longitude, just north of the western Aphrodite highland. (Courtesy of NASA/JPL.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University