Sulfur-rich Mercury magmas behave differently than Earth's do

Sulfur-rich Mercury magmas behave differently than Earth's do

Mercury is a small, rocky planet about which researchers know relatively little. Two missions, taking readings as they passed over the planet, have revealed that Mercury is covered by an iron-poor and sulfur-rich crust. It is also reduced, a chemical state in which the substances have gained electrons. In fact, it's the most reduced planet in the solar system.