New explanation for Mercury’s dark surface

Livermore CA (SPX) Apr 05, 2015

Peering into space, the surface of Mercury appears dark and unreflective, an observation that has long puzzled planetary scientists due to the planet’s very low surface abundance of iron (less than 2 percent).

Iron is an important darkening material in airless bodies like the moon and asteroids.While the intense space weathering environment on Mercury, which efficiently converts the small —> Read More