What were the ALH84001 objects found in the Mars meteorite?



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    There were three main objects observed within this meteorite.  The first object was polycyclic aromatic hydrocarbons (PAHs).  This family of compounds are not unusual in dust grains normally found in other meteorites, but the ones found on this meteorite had a different mixture of PAHs.  The second object were different mineral phases of minerals that closely resemble mineral phases on Earth.  The last object were “microfossils” of ovoids or tiny bacteria 20-100 nanometers in size.  

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