jul 232012
 
Ancient Meteorites Give New Clues to the Early Solar System

  In order to understand Earth’s earliest history–its formation from Solar System material into the present-day layering of metal core and mantle, and crust–scientists look to meteorites. The diogenites originated deep within the crust of Vesta and resemble rocks, both in texture and composition, which we find in the lower crust of the Earth. The [continue reading]

apr 062012
 
Team finds asteroids were bombarded by iron loving elements too

A team made up of a diverse group of researchers has found after studying the composition of several asteroids that most such planetesimals had an abundance of highly siderophile elements in their mantles suggesting, as the team writes in their paper published in the journal Science, that they were subject to the same inner solar [continue reading]