Craters On Eros Hint at Double Whammy Sat. Then suddenly they slam into another, larger asteroid. That's what scientists think might have caused the double crater found recently on Asteroid Eros.
Some impact craters occurring on Earth and on other planetary bodies come in close pairs.
They are sometimes the result of the chance superimposition of two impact events that occur at different moments in history. However, a few double craters are also thought to have formed by the impact of two similarly sized bodies that are traveling in close orbit or touching each other, scientists on the project said. In the image below, taken June 3, the final glimmers of sunlight illuminate the far wall of a crater seconds before sunset on Eros. The setting sun leaves a glimmer of light over Eros. The latest plans to bring Mars rocks back to Earth.