I’ve tried to collect information that would allow me to find an explanation how craters are formed on terrestrial bodies. The motivation for this comes from this NASA photograph of a double crater. The most interesting detail about it is the almost perfect straight line in between the two crater holes. I’ve created and added a page to the concepts section of the website. You can navigate to that page by clicking on the science menu button at the top of the screen, followed by clicking on the concepts tab and then select ‘Craters Created by Orbs’, or you can simply click on the image below.