Unusual shape: iron-nickel meteorites are rarely rounded. Instead, they have an irregular shape with unusual pits like finger prints in their surface called “regmaglypts.” Fusion crust: stony ...

In the article, “A Low-Temperature Transfer of ALH84001 from Mars to Earth,” the scientists do not claim that microbial life actually traveled from Mars to Earth aboard the meteorite, but they ...

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 ...

Meteorite hunting is a big business, ... This led the team to develop a mathematical model based that could help determine whether or not a small hand magnet had been used to re-magnetize a meteorite.

MOST of the secondary or chondritic meteorites are composed of irregular grains of silicate, sulphide, phosphide, oxide and metal phases. They are generally thought to be fragments of secondary ...

Meteorites are identified by their high metal content, particularly iron-nickel alloys, and their fusion crust, a thin, glassy coating formed as the meteorite's outer surface melts while passing ...

Scientists say some iron meteorites bear the remnants of an internally-generated magnetic field — which shouldn’t be possible. Although iron meteorites are thought to represent the metallic cores of ...