Frost-covered Dunes Mercury just another day on the

just another day on the moon

is a young lunar crater with a sharp rim

Look closely and you can see the moon protruding from the Earth's lower right

000 light-years from Earth

but some scientists show evidence that contradicts this theory

Frost-covered Dunes Mercury just another day on theDunes are often found on crater floors. In the winter, at high northern latitudes, the terrain is covered by carbon dioxide ice (dry ice). In the spring, as this seasonal ice sublimes, many unusual features unique to Mars are visible. On the floor of this crater where there are no dunes, the ice forms an uninterrupted layer. On the dunes, however, dark streaks form as surface material from below the ice is mobilized and deposited on top of the ice. In