19 agosto 2014
A new ovoid structure discovered in the Nakhla Martian meteorite is made of nanocrystalline iron-rich clay, contains a variety of minerals, and shows evidence of undergoing a past shock event from impact, with resulting melting of the permafrost and mixing of surface and subsurface fluids.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/VLRL4n1boDM/140819112923.htm
