The oldest known Martian meteorites, which date to roughly 4.4 billion years ago, therefore present an “amazing chance to study the magnetic field,” says Vervelidou, of MIT and the Institute ...

Researchers are asking meteorite hunters to refrain from using magnets to test the authenticity of their finds because this can destroy the specimen's magnetic memory, erasing valuable information ...

Rocks unaltered by humanmade or non-Earth forces have 2% to 3% natural remanent magnetization, ... but Kletetschka also found that the meteorite impact had weakened the magnetic field in the area.

Magnetic fields frozen into meteorite grains tell a shocking tale of solar system birth. ScienceDaily. Retrieved May 29, 2025 from www.sciencedaily.com / releases / 2014 / 11 / 141113142110.htm.

Even if a meteorite does contain iron, it isn't expected to have a circulating dynamo, like the one in Earth's inner core, which scientists think is necessary to generate a magnetic field.

Scientists are asking meteorite hunters to cease and desist using magnets to verify their finds. Even weak magnets can destroy valuable information concerning the magnetic field of its parent body ...

Designer/builder Franz Baudenbacher holding sample of Martian meteorite ALH84001 next to scanning stage of URSSM. Photo source: Neil Brake, Vanderbilt University.

From a small bag, Henoun took out a magnifying glass and a magnetic strip. Most meteorites contain iron-nickel, an alloy that attracts magnets and isn’t found in terrestrial rocks.

Magnetic fields in 4-billion-year-old rocks suggest the dust and gas cloud that spawned the solar system had gone by 3.8 ... One way we can learn about this is by examining meteorites that formed ...

And for the first time, magnetic measurements within these meteorites allowed the team to constrain the lifetime and spatial evolution of our solar system’s protoplanetary disk.