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posted by martyb on Friday June 11, @11:11AM   Printer-friendly
from the That's-no-moon dept.

Psyche 16 may not be solid metal, after all. News at Phys.org:

The widely studied metallic asteroid known as 16 Psyche was long thought to be the exposed iron core of a small planet that failed to form during the earliest days of the solar system. But new University of Arizona-led research suggests that the asteroid might not be as metallic or dense as once thought, and hints at a much different origin story.

Scientists are interested in 16 Psyche because if its presumed origins are true, it would provide an opportunity to study an exposed planetary core up close. NASA is scheduled to launch its Psyche mission in 2022 and arrive at the asteroid in 2026.

UArizona undergraduate student David Cantillo is lead author of a new paper published in The Planetary Science Journal that proposes 16 Psyche is 82.5% metal, 7% low-iron pyroxene and 10.5% carbonaceous chondrite that was likely delivered by impacts from other asteroids. Cantillo and his collaborators estimate that 16 Psyche's bulk density—also known as porosity, which refers to how much empty space is found within its body—is around 35%.

These estimates differ from past analyses of 16 Psyche's composition that led researchers to estimate it could contain as much as 95% metal and be much denser.

Wikipedia entry on 16 Psyche.

Precipitated a collapse of other unknown psyche things, like cryptocurrency.

Journal Reference:
David C. Cantillo, et al. Constraining the Regolith Composition of Asteroid (16) Psyche via Laboratory Visible Near-infrared Spectroscopy - IOPscience, The Planetary Science Journal (DOI: 10.3847/PSJ/abf63b)


Original Submission

 
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  • (Score: 0) by Anonymous Coward on Friday June 11, @11:44PM

    by Anonymous Coward on Friday June 11, @11:44PM (#1144413)

    If enough gold was brought to earth to make that extraction economically inaccessable then it could very well also mean that gold costs to produce new ceramic/metal/gold packaged chips could become viable again.

    For people wondering why this would matter: These chips have enough gold plating on them to operate for details or longer without corrosion taking them down (outside of maybe copper electromigration or gate leakage from thermal stresses/overvolting) and future spacecraft will likely want similarly robust chips to ensure they last for the long tours they will be making in space.