Study argues Loeb's Pacific spherules match coal ash

When

University of Chicago physicist Patricio Gallardo argued in Research Notes of the AAS that the element pattern in Avi Loeb's Pacific spherules matches industrial coal ash, disfavoring a meteoritic or interstellar origin. Loeb disputed the comparison.

Sources

  1. FirsthandAnthropogenic Coal Ash as a Contaminant in a Micro-meteoritic Underwater Search (P. A. Gallardo) (opens in a new tab)Research Notes of the AAS (IOP Publishing) / 2023-10
  2. Press'Alien' spherules dredged from the Pacific are probably just industrial pollution, new studies suggest (opens in a new tab)Live Science
  3. OtherCritique of arXiv submission 2308.15623 (Loeb et al. spherules) (opens in a new tab)arXiv / 2023-11

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How the story came out

This reports on Loeb's team claims Pacific spherules have an extrasolar origin (29 Aug 2023).

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