M-type asteroids

Definition

M-type asteroids are a classification of asteroids that primarily consist of metallic iron and nickel. They are thought to be remnants of the metallic cores of differentiated protoplanets.

5 Must Know Facts For Your Next Test

1. M-type asteroids are often found in the middle region of the asteroid belt.
2. They exhibit high radar albedo compared to other asteroid types due to their metallic content.
3. Examples include 16 Psyche, which is one of the largest M-type asteroids and a target for NASA's upcoming mission.
4. M-types may provide insights into the early differentiation and core formation processes of protoplanets.
5. These asteroids can contain significant amounts of metal, making them potential targets for future space mining.

Review Questions

• What materials primarily compose M-type asteroids?
• Where in the asteroid belt are M-type asteroids commonly found?
• Why do M-type asteroids have higher radar albedo compared to other types?

Related terms

C-type Asteroid: A type of asteroid primarily composed of carbonaceous materials and is very dark in appearance.

S-type Asteroid: A type of asteroid made up mostly of silicate (stony) materials and nickel-iron.

Differentiation: The process by which a planet or other body develops internal layers with different compositions, such as a core, mantle, and crust.