๐Ÿชintro to astronomy review

M-type asteroids

Written by the Fiveable Content Team โ€ข Last updated September 2025
Written by the Fiveable Content Team โ€ข Last updated September 2025

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.

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