Technosignatures & observational framing

Kopparapu et al.

Whether large-scale silicon photovoltaics on a distant planet would be remotely detectable via reflectance spectroscopy. A clean technosignature-feasibility paper.

Suazo et al.

The Hephaistos II survey identifies seven M-dwarf systems with infrared excess consistent with partial Dyson-sphere energy capture. Most-cited modern Dyson-search result.

Lingam et al.

Formal frameworks for technosignature-evidence assessment, drawing analogies to the biosignature-assessment literature. Useful for evaluating ambiguous UAP/anomalous-object claims.

Margot et al.

GBT survey of 11,680 nearby stars in a UAP-adjacent observational band. No detections, but the sensitivity ceiling sets a useful constraint.

Choza et al.

Extragalactic Breakthrough Listen survey — the deepest-yet whole-galaxy technosignature search. Sets the per-galaxy radio-power ceiling.

Brzycki et al.

Methods paper showing how interstellar-scintillation signatures could be used to distinguish genuine narrowband signals from RFI in SETI surveys.

Wright et al.

The reference theoretical case for why technosignature searches deserve a permanent place in the observational programme. Sets the framing inside which UAP-instrumentation work sits.

Kopparapu et al.

Atmospheric-pollution technosignature: NO₂ spectral lines as a tracer of high-temperature combustion. The most-cited industrial-pollution technosignature paper.

Lacki et al.

Compiles the most chemically and physically anomalous objects in the sky into a single survey target list. The 'unknown unknowns' list for technosignature follow-up.

Sheikh et al.

Forensic analysis of the blc1 signal (Proxima Centauri direction, 2020): why it was promoted to a signal-of-interest and why it ultimately resolved to terrestrial RFI.

Smith et al.

The original discovery paper for blc1. Companion to Sheikh et al. 2021 in the same Nature Astronomy issue.

Sheikh

Standardised nine-axis scoring system for comparing technosignature-search proposals. Widely adopted as the field's evaluation matrix.

Wright

Astro2020 decadal-survey white paper arguing for a formal technosignature-search line in the federal astronomy programme.

Benford

Argues that Earth co-orbital and Lagrange-point regions are under-surveyed for possible artificial probes — adjacent to the Villarroel solar-system search programme.

Sandberg, Drexler & Ord

Bayesian treatment showing that uncertainty propagation in the Drake equation makes a galaxy empty of detectable civilisations entirely consistent with current knowledge.

Wright et al.

Output of the 2018 NASA-convened technosignatures workshop. The piece that re-legitimised NASA-side technosignature research after a multi-decade pause.

Colombano

Internal NASA-Ames technical note proposing that SETI loosen anthropic assumptions about biological vs post-biological intelligences. Widely circulated despite its informal venue.