Ghost Crater Shows Skid Mark-Like Features in This Photo From Mars

“Sometimes we see circles on the Martian landscape with no apparent cause, such as in this picture of Utopia Planitia.” This is how the people behind the powerful HiRISE camera onboard the Mars Reconnaissance Orbiter describe the image you’re looking at now, shot not long ago from high above Mars. What you’re looking at is a piece of the Utopia Planitia, one of the many cool-named regions of Mars. T... (continue reading...)