Provenance & access
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Published article DOI: 10.1038/s41550-021-01508-8. arXiv date is the preprint deposit date.
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Attributed claims
BLC1 was a signal of interest near 982 MHz.
ESTABLISHED · Reported instrument observation.
BLC1 was an extraterrestrial technosignature.
DEBUNKED_WITHIN_SCOPE · The Sheikh et al. analysis identifies locally generated interference for this candidate.
Signal candidates require conventional-explanation checks.
ESTABLISHED · Research method, illustrated by BLC1.
Connected encyclopedia entries
BLC1: a lesson in verification
A candidate radio signal observed toward Proxima Centauri was traced to locally generated interference through detailed follow-up.
Search for extraterrestrial intelligence
A research effort looking for evidence of technologically capable life through testable observations.
Technosignatures
The scientific search for observable indications of technology beyond Earth, from radio emissions to proposed atmospheric or large-scale effects.