Unexpected discoveries on a metal world
Tucson AZ (SPX) Oct 21, 2016 -
Astronomers have discovered possible evidence for water on the surface of the largest metallic asteroid in the solar system. Named 16 Psyche, the object is one of the most massive in the asteroid belt, measuring 186 miles across and consisting of almost pure nickel-iron metal. It is thought to be the remnant core of a planetary embryo that was mostly destroyed by impacts billions of years ago. ...
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