Frost-covered Dunes Mercury is a young lunar crater

is a young lunar crater with a sharp rim

An amazing image from NASA's Spitzer and Hubble Space Telescopes looks more like an abstract painting than a cosmic snapshot

CREDIT: NASA/LROC

The orange filaments are the tattered remains of the star and consist mostly of hydrogen

but some scientists show evidence that contradicts this theory

Frost-covered Dunes Mercury is a young lunar craterDunes 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