Most planetary atmospheres are made up of simple, low-mass elements and compounds such as carbon dioxide, oxygen and nitrogen. But when a debris particle, or meteoroid, passes through, it can shed heavier, more exotic elements such as magnesium, silicon and iron.
Such elements can have a significant impact on the circulation and dynamics of winds in the atmosphere, researchers say.
"That opens up a whole new network of chemical pathways not usually there," said Paul Withers of Boston University .... http://www.sott.net