Scientists Find Evidence of Ancient Microbial Life on Mars SpaceDaily

An international team of researchers has discovered compelling evidence that the magnetite crystals in the martian meteorite ALH84001 are of biological origin. The researchers found that the magnetite crystals embedded in the meteorite are arranged in long chains, which they say could have been formed only by once-living organisms. Their results are reported in the Feb. 27 Proceedings of the National Academy of Sciences.