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Have yet to see any of these ‘studies’ take into account and compare with natural meteorite effects, which are orders of magnitude larger than the satellites.
Niobium and hafnium do not occur as free elements in nature, but are refined from mineral ores. They are used in semiconductors and superalloys.
In addition to these two unusual elements, a significant number of particles contained copper, lithium and aluminum at concentrations far exceeding the abundance found in meteorics, or ‘space dust.’ “The combination of aluminum and copper, plus niobium and hafnium, which are used in heat-resistant, high-performance alloys, pointed us to the aerospace industry,’’ Murphy said.
they are finding elements that don’t even occur in nature, and elements that do occur but in proportions in the atmosphere that have grown significantly since we started burning up rockets.
Armchair scientists don’t seem to give actual scientists much credit.
Have yet to see any of these ‘studies’ take into account and compare with natural meteorite effects, which are orders of magnitude larger than the satellites.
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they are finding elements that don’t even occur in nature, and elements that do occur but in proportions in the atmosphere that have grown significantly since we started burning up rockets.
Armchair scientists don’t seem to give actual scientists much credit.