16 Psyche Asteroid

16 Psyche (/ˈsaɪkiː/ SY-kee) is one of the ten most massive asteroids in the asteroid belt. It is over 200 km (120 mi) in diameter and contains a little less than 1% of the mass of the entire asteroid belt. It is thought to be the exposed iron core of a protoplanet.

It is the most massive metallic M-type asteroid. Psyche was discovered by the Italian astronomer Annibale de Gasparis on 17 March 1852 from Naples and named after the Greek mythological figure Psyche.

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By Tomruen - Own work, CC BY-SA 4.0

16 Psyche orbit between Mars and Jupiter.

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By Astronomical Institute of the Charles University: Josef Ďurech, Vojtěch Sidorin

Lightcurve-based 3D-model of Psyche.

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By NASA/JPL-Caltech/Arizona State Univ./Space Systems Loral/Peter Rubin

This artist's-concept illustration depicts the spacecraft of NASA's Psyche mission near the mission's target, the metal asteroid Psyche. The artwork was created in May 2017 to show the five-panel solar arrays planned for the spacecraft. The spacecraft's structure will include power and propulsion systems to travel to, and orbit, the asteroid. These systems will combine solar power with electric propulsion to carry the scientific instruments used to study the asteroid through space. The mission plans launch in 2022 and arrival at Psyche, between the orbits of Mars and Jupiter, in 2026. This selected asteroid is made almost entirely of nickel-iron metal. It offers evidence about violent collisions that created Earth and other terrestrial planets.

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Psyche is both the name of an asteroid orbiting the Sun between Mars and Jupiter — and the name of a NASA space mission to visit that asteroid, led by Arizona State University. Join the Psyche team to explore why this mission was selected for NASA’s Discovery Program, how we’ll get to the asteroid, what we hope to learn from Psyche, and the importance of scientific discovery.