Improved Instrumental Techniques (Prog. Aerospace Sci. 2022).
documentedsource_actorScience of UAP
Nolan G.P., Vallee J.F., Jiang S., Lemke L.G. 'Improved instrumental techniques, including isotopic analysis, applicable to the characterization of unusual materials with potential relevance to aerospace forensics.' Progress in Aerospace Sciences 128:100788 (2022), online 9 Dec 2021. DOI 10.1016/j.paerosci.2021.100788. Reviews SIMS/mass-spectrometry methods; correlates isotopic analysis with a witnessed incident. Peer-reviewed (invitation-only review journal). Methods paper = documented; it does NOT prove ET origin; Metabunk critics flag witness-account inconsistencies.
**Replication status:** single-source · terrestrial — Nolan/Vallée/Jiang/Lemke 2022 (Prog. Aerospace Sci. 128:100788): a methods paper; all isotope ratios terrestrial, lone 57Fe bump = hydride contamination. Negative result, often mis-cited as anomalous.