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16 Psyche (/ ˈ s aɪ k iː / SY-kee) is a large M-type asteroid, which was discovered by the Italian astronomer Annibale de Gasparis, on 17 March 1852 and named after the Greek goddess Psyche. [10] The prefix "16" signifies that it was the sixteenth minor planet in order of discovery.
Parts-per-million chart of the relative mass distribution of the Solar System, each cubelet denoting 2 × 10 24 kg. This article includes a list of the most massive known objects of the Solar System and partial lists of smaller objects by observed mean radius.
May 16, 1866 : Pogson, N. R. X: 15 Eunomia ... 16 Psyche: 223 ... First "big four" asteroid visited by a spacecraft, largest asteroid visited by a spacecraft at the ...
The Psyche spacecraft lifted off atop one of SpaceX’s Falcon Heavy rockets at 10:19 a.m. ET from the Kennedy Space Center in Florida. The probe will now spend years traveling into deep space en ...
Distant, ancient chunk of metal is thought to be a protoplanet
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Psyche (/ ˈ s aɪ k i / SY-kee) is a NASA Discovery Program space mission launched on October 13, 2023, to explore the origin of planetary cores by orbiting and studying the metallic asteroid 16 Psyche beginning in 2029. [8]
433 Eros is a stony asteroid of the Amor group, and the first discovered, and second-largest near-Earth object.It has an elongated shape and a volume-equivalent diameter of approximately 16.8 kilometers (10.4 miles).