From UPI.com:
"July 1 (UPI) -- The most popular theory of the moon's origins contends the satellite was formed when a Mars-sized object collided with Earth, vaporizing large portions of Earth's upper crust.
While Earth's upper crust is poor in metals, new research -- published Wednesday in the journal Earth and Planetary Science Letters -- suggests the moon's subsurface is surprisingly metal-rich, undermining the satellite's proposed origin story."
https://www.upi.com/Science_News/2020/0 ... 593631452/
smp
Moon's metal-rich craters challenge popular theories about its origin
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smp
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Moon's metal-rich craters challenge popular theories about its origin
Stephen
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Telescopes: Questar 3.5 Standard SN 18-11421; Stellina (EAA)
Solar: Thousand Oaks white light filter; Daystar Quark (chromosphere) Hα filter
Mounts: Explore Scientific Twilight I; Majestic heavy duty tripod
Local Club: New Hampshire Astronomical Society
- - - - -
Telescopes: Questar 3.5 Standard SN 18-11421; Stellina (EAA)
Solar: Thousand Oaks white light filter; Daystar Quark (chromosphere) Hα filter
Mounts: Explore Scientific Twilight I; Majestic heavy duty tripod
Local Club: New Hampshire Astronomical Society
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