Distinguishing the Origin of Asteroid (16) Psyche

Area of Science:

• Planetary Science
• Asteroid Science
• Astrogeology

Background:

• Asteroid (16) Psyche is a unique, metal-rich body in the asteroid belt.
• Its origin is debated: it could be the remnant core of a protoplanet or undifferentiated metal-rich material.
• Understanding Psyche's origin provides insights into early solar system formation and differentiation processes.

Purpose of the Study:

• To determine the provenance and formation history of asteroid (16) Psyche.
• To differentiate between Psyche being a planetary core versus undifferentiated asteroidal material.
• To investigate physical and chemical processes that lead to metal enrichment in asteroids.

Main Methods:

• The NASA Psyche mission spacecraft payload is designed for in-situ analysis.
• Measurements include: remanent magnetic fields, neutron spectroscopy, filtered imaging, gravity science, and gamma-ray neutron spectroscopy (GRNS).
• These methods will assess composition, mineralogy, metal-silicate mixing, and nickel content.

Main Results:

• The payload instruments are capable of discriminating between major formation theories for Psyche.
• Detection of strong remanent magnetic fields would support a differentiated core origin.
• Analysis of metal-silicate mixing, mineralogy, and nickel content will further constrain formation models.

Conclusions:

• The Psyche mission will provide definitive data on the origin and formation of asteroid (16) Psyche.
• Findings will enhance our understanding of planetary differentiation and the early solar system.
• Psyche serves as a unique natural laboratory for studying metallic planetary cores.