Claims of Extrasolar Spherules from Pacific Ocean Site CNEOS 2014-01-08 Disputed
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/2403.05161https://arxiv.org/ftp/arxiv/papers/2403/2403.05161.pdfThe 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.
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/metaRelated 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/2311.07699https://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-suggestGallardo, P.A., 2023. Anthropogenic Coal Ash as a Contaminant in a Micro-meteoritic Underwater Search.
