aug 272013
 
Chelyabinsk Meteorite had Previous Collision or Near Miss

  The Chelyabinsk meteorite either collided with another body in the Solar System or came too close to the Sun before it fell to Earth, according to research announced today (Tuesday 27th August) at the Goldschmidt conference in Florence. A fragment of the Chelyabinsk meteorite, showing the fusion crust — the result of a previous [continue reading]

sep 182012
 
Characterizing the Surface Composition of Mercury

NASA’s MESSENGER (MErcury Surface, Space Environment, GEochemistry, and Ranging) spacecraft, which has been orbiting Mercury since March 2011, has been revealing new information about the surface chemistry and geologic history of the innermost planet in the Solar System. Mercury, as taken from the spacecraft MESSENGER. The spacecraft captured nearly 100,000 images as it orbited the planet. [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]