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New class of Mars meteorite discovered


Posted on Saturday, 5 January, 2013 | Comment icon 4 comments | News tip by: Still Waters


Image credit: NASA

 
A unique black meteorite found in the Moroccan desert has turned out to have come from the planet Mars.

Nicknamed "Black Beauty", the meteorite has a texture and chemistry that sets it apart from previous Martian meteorites and is believed to be just over two billion years old. Like other meteorites from Mars, this one would have originated at the site of an asteroid impact on the Red Planet, catapulting chunks of rock off in to space. Such finds are very rare, only 100 or so meteorites from Mars have ever been found on the Earth.

"It has some resemblance to the other Martian meteorites but it's also distinctly different in other respects, both in the way it just looks in hand sample, but also in its elemental composition." said study leader Carl Agee. There is far more water in the new meteorite than in any others found from Mars suggesting water was a lot more abundant at the time it was formed. "This rock is from two billion years ago and a lot of the SNCs are from only about 200-400 million years ago," said Agee.

"A dark lump of rock found in the Moroccan desert in 2011 is a new type of Martian meteorite, say scientists."

  View: Full article |  Source: BBC News

  Discuss: View comments (4)

   


 
Recent comments on this story
Comment icon #1 Posted by Hilander on 3 January, 2013, 20:29
I wish I could find one of them. We saw one fall one time and even with snow on the ground we couldn't find it.
Comment icon #2 Posted by Ligia Cabus on 4 January, 2013, 15:48
04/012013 IN http://www.nature.com/news/meteorite-carries-ancient-water-from-mars-1.12145 AND ALSO IN [http://www.huffingtonpost.co.uk/2013/01/04/mars-meteorite-nwa-7034-b_n_2407542.html?utm_hp_ref=uk?ncid=GEP] A meteorite from Mars has been found to contain 10 times as much water as other similar rocks from Mars... IN [http://www.guardian.co.uk/science/2013/jan/03/mars-meteor-water-sahara-analysis] Scientists are excited about a coal-coloured rock from Mars that landed in the Sahara desert. A year-long analysis revealed it is quite different from other Martian meteorites: not only is it... [More]
Comment icon #3 Posted by the L on 5 January, 2013, 13:09
It depends. The first modern instance of a meteorite striking a human being occurs at Sylacauga, Alabama, when a meteorite crashes through the roof of a house and into a living room, bounces off a radio, and strikes a woman on the hip. The victim, Mrs. Elizabeth Hodges, was sleeping on a couch at the time of impact. The space rock was a sulfide meteorite weighing 8.5 pounds and measuring seven inches in length. Mrs. Hodges was not permanently injured but suffered a nasty bruise along her hip and leg. Ancient Chinese records tell of people being injured or killed by falling meteorites, but th... [More]


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