Winds blow crater ejecta

Winds blow crater ejecta

. A radar image of Adivar Crater is surrounded by a streamlined, horseshoe or parabolic shapes (top and bottom right) and a bright, jet-like streak (center left) that extend 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 thousand meters 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 JPL and NASA.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University