Weiss investigated the Marsbrocken under the Ultra High Resolution Scanning Superconducting Quantum Interference Device Microscope (UHRSSM). With its help, tiny differences in the magnetic orientation of individual minerals can be investigated. As a result of heating, these differences are equalized. And this happened in the experiment already at temperatures from 40 degrees Celsius. The interior of the meteorite, from which the fine disks for the investigation originated, was therefore never exposed to higher temperatures after the asteroid impact on Mars. The life it contained would have had good chances of survival.
Although Weiss does not believe that ALH84001 is good for such surprises, life in this way could have come from Mars to Earth. Computer simulations show that since the formation of both planets about one billion tons of Martian rock came to Earth. And with great certainty it was once warm, humid and sunny on the red planet.
Science adJoachim Schüring