What was published
Méndez and collaborators reanalysed archival Ohio SETI observations in a 2025 arXiv preprint, revising estimates of the signal’s location, intensity and frequency.
What is proposed
The authors discuss an astrophysical origin. That is an attributed research interpretation, not a verified identification of the original source.
What to read next
Compare the original detection history with the new analysis. The preprint’s publication status and assumptions matter when evaluating its conclusion.
Sources
SETI InstituteSecondary source
The Wow Signal
Research organizationHistorical explainer
Retrospective overview of the Big Ear detection, not the original raw observing dataset.
Published: not specified · Accessed: 2026-10-02
SourcearXivPrimary source
Arecibo Wow! II: Revised Properties of the Wow! Signal from Archival Ohio SETI Data
Abel Méndez et al.
Primary researchPreprint
The linked arXiv record is a preprint. Its proposed astrophysical interpretation is a research claim, not a confirmed identification.
Published: 2025-08-14 · Accessed: 2026-10-02
SourceRecord history
- Version 1 · Oct 2, 2026 — Initial source-led edition