News tagged with magnetite grains

Mars meteorite controversy continues

The most illustrious meteorite in history continues to inspire heated debate. Does it carry microbial fossils from Mars or are its strange features just the product of some unique geochemistry? After almost ...

Oct 22, 2010
4.8 / 5 (16) 6 | with audio podcast

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Skeletons in the pre-Cambrian closet

The Cambrian explosion marked a major blossoming in the tree of life around 540 million years ago. Nearly all of the major phyla in the animal kingdom appeared in a sudden burst of evolution. One of the drivers ...

Jan 07, 2011
4.9 / 5 (14) 3 | with audio podcast

It's a grind to make Mars red

(PhysOrg.com) -- The widespread idea that Mars is red due to rocks being rusted by the water that once flooded the red planet may be wrong. Recent laboratory studies show that the red dust may be formed by ...

Sep 18, 2009
4.5 / 5 (6) 2

NASA's Twin Mars Rovers Continue Exploration

NASA's Spirit rover found a new class of water-affected rock, while its twin, Opportunity, finished inspecting its own heat shield and set a new martian driving record. The rovers successfully completed their three-month ...

Feb 15, 2005
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List of search results for magnetite grains