Magnetite from Mars

The martian meteorite ALH84001 arrived on Earth 13,000
years ago. The chain like formation, typical of biogenic magnetite, suggests this was a life form. This is the oldest reported magnetofossils, from 4.0 billion-year-old carbonate blebs, in the Martian meteorite. The oldest Earth magnetofossils are 2.1 billion years old.  See YouTube: The Universe: Martian Life – ALH-84001

Magnetoreception may well have been among the first sensory systems to evolve, as suggested by the presence of magnetosomes and magnetosome chain structures in the 4.0 billion year old carbonate blebs of the Martian meteorite ALH84001 [50••,51,52]. although this is nearly a billion years older than the oldest microbial fossils on Earth, it suggests that this genetic ability was brought here from Mars via the process of panspermia.”

YouTube: This is Mars 2017

Reading: Mars, National Geographic, Nov. 2016           Mission to Mars, Time, special edition, Nov. 2016

Magnetite-based magnetoreception”  Joseph L Kirschvink*, Michael M Walker and Carol E Diebel

Paul C Adams                       updated 2/15/17