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,
even "alien" 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.
[arxiv.org]
[arxiv.org]

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 2308.15623
[arxiv.org]
[arxiv.org]

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.
[iopscience.iop.org]

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
[arxiv.org]
[arxiv.org]

'Alien' spherules dredged from the Pacific are probably just
industrial pollution, new studies suggest. LiveScience, Nov. 16, 2023
[www.livescience.com]

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.
[ispcjournal.org]

Yours,

Paul H.

"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)



Edited 1 time(s). Last edit at 03/13/2024 09:07PM by Paul H..