Recently, a preprint has been posted to the arXiv site that
disputes proposal that Be,La,U-rich spherules recovered form Pacific Ocean Site CNEOS 2014-01-0 are from an extrasolar origin. Instead, they argued to be microtektites of terrestrial lateritic sandstone. The preprint is: Desch, S., 2024. Be, La, U-rich spherules as microtektites of terrestrial laterites: What goes \\ up must come down. arXiv preprint arXiv:2403.05161. https://arxiv.org/abs/2403.05161 https://arxiv.org/ftp/arxiv/papers/2403/2403.05161.pdf The proposed extrasolar spherules are discussed in: Loeb, A., Adamson, T., Bergstrom, S., Cloete, R., Cohen, S., Conrad, K., Domine, L., Fu, H., Hoskinson, C., Hyung, E., Jacobsen, S., Kelly, M., Kohn, J., Lard, E., Lam, S., Laukien, F., Lem, J., McCallum, R., Millsap, R., Parendo, C., Petaev, M., Peddeti, C., Pugh, K., Samuha, S., Sasselov, D., Schlereth, M., Siler, J.J., Siraj, A., Smith, P.M., Tagle, R., Taylor, J., Weed, R., Wright, A., and Wynn, J. 2023., Discovery of Spherules of likely extrasolar composition in the Pacific Ocean site of the CNEOS 2014-01-08 (IM1) bolide. arXiv preprint 2308.15623 https://arxiv.org/abs/2308.15623 https://arxiv.org/pdf/2308.15623.pdf Loeb, A., Adamson, T., Bergstrom, S., Cloete, R., Cohen, S., Conrad, K., Domine, L., Fu, H., Hoskinson, C., Hyung, E., Jacobsen, S., Kelly, M., Kohn, J., Lard, E., Laukien, F., Lem, J., McCallum, R., Millsap, R., Parendo, C., Petaev, M., Peddeti, C., Pugh, K., Samuha, S., Sasselov, D., Schlereth, M., Siler, J.J., Siraj, A., Smith, P.M., Tagle, R., Taylor, J., Weed, R., Wright, A., and Wynn, J. 2024. Recovery and classification of spherules from the Pacific Ocean site of the CNEOS 2014 January 8 (IM1) bolide. Research Notes of the American Astronomical Society 8: 39. https://iopscience.iop.org/article/10.3847/2515-5172/ad2370/meta Related paper, reprint and press release: Desch, S., and Jackson, A., 2023. Critique of arXiv submission 2308.15623, "Discovery of Spherules of Likely Extrasolar Composition in the Pacific Ocean Site of the CNEOS 2014-01-08 (IM1) Bolide", by A. Loeb et al arXiv:2311.07699 https://arxiv.org/abs/2311.07699 https://arxiv.org/pdf/2311.07699.pdf 'Alien' spherules dredged from the Pacific are probably just industrial pollution, new studies suggest. LiveScience, Nov. 16, 2023 https://www.livescience.com/space/extraterrestrial-life/alien-spherules-dredged-from-the-pacific-are-probably-just-industrial-pollution-new-studies-suggest Gallardo, P.A., 2023. Anthropogenic Coal Ash as a Contaminant in a Micro-meteoritic Underwater Search. Research Notes of the AAS, 7(10), p.220. http://ispcjournal.org/journals/2024/32/PhC_vol_32_Lomas.pdf Yours, Paul H.
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