Magnets Foil Mars' Magnetic Field Confirmation

The use of hand magnets by meteorite hunters to discover their targets is wiping out the natural magnetism of the meteorites, including the Martian meteorite Black Beauty, which could have provided vital information about the planet's ancient magnetic field. The use of susceptibility meters is suggested as an alternative to hand magnets, but it may be hard to implement among semi-professional teams who rely on meteorite finds as a source of income.