---
title: "Fireflies Instead of Ciphers: SETI Scientists Propose Searching for Aliens via Mating Flash Principles"
description: "SETI scientists have published a new methodology in Scientific Reports for searching for extraterrestrial civilizations: instead of decoding complex messages, look for radio signals that differ from the cosmic background in structure. The model is built on data from 158 pulsars."
date: 2026-11-03T06:15:55.131Z
lang: en
url: https://xab.info/en/posts/seti-new-approach-alien-search-fireflies-pulsars
tags: [seti, extraterrestrial-life, radio-signals, pulsars, fireflies, scientific-reports, astrobiology]
author: "Alexander Buran"
publisher: "XAB.info"
---

# Fireflies Instead of Ciphers: SETI Scientists Propose Searching for Aliens via Mating Flash Principles

![Observatory radio telescope under a night starry sky illustrating SETI astronomical research](https://xab.info/media/2026/11/03/seti-novyy-podhod-k-poisku-ino-yan-svetlyachki-pulsary/seti-novyy-podhod-k-poisku-ino-yan-svetlyachki-pulsary-1.webp)

## Key Points

- SETI researchers proposed searching for extraterrestrial signals based on structural differences from the natural background rather than information content
- The mathematical model is built on data from 158 pulsars within a 16,000-light-year radius
- The approach is inspired by the communication mechanisms of fireflies, dolphins, and crows
- The new methodology complements rather than replaces existing SETI protocols

A group of researchers working within the Search for Extraterrestrial Intelligence (SETI) program has published a conceptual study in the journal Scientific Reports, proposing a radical overhaul of the principles used to search for signals from hypothetical extraterrestrial civilizations. Instead of the traditional approach—attempts to decipher complex coded messages or laser pulses—the authors suggest focusing on radio signals that differ from the natural cosmic background primarily in their structure and periodicity. According to them, it is this structural difference, rather than the informational content, that serves as the key marker of a signal's artificial origin.

### Why the Human Template Can Be Misleading

For several decades, the search for extraterrestrial intelligence has been built on an implicit assumption: potential civilizations will use technologies similar to human ones—radio transmissions, optical laser signals structured according to the logic familiar to terrestrial engineering. The researchers point out that this assumption may be flawed. Even on Earth, intelligent communication does not boil down to a single universal format: dolphins use a complex system of clicks and whistles, crows convey information through specific calls, and fireflies during mating season emit sequences of flashes that vary in duration, frequency, and color. Each of these mechanisms allows the sender to stand out among surroundings with minimal energy expenditure, without resorting to 'complex messages' in the human sense.

### A Mathematical Model Based on Pulsar Data

Inspired by natural communication mechanisms, the authors built a mathematical model describing how an artificial signal could stand out against the background of natural cosmic noise. Pulsars—rapidly rotating neutron stars emitting regular pulses in the radio frequency range—were chosen as the baseline for comparison. To calibrate the model, the scientists used data on 158 pulsars located within a 16,000-light-year radius from Earth. Based on this data, the algorithm generated a set of optimal signal structures that require a minimal amount of energy for transmission while remaining easily distinguishable from natural radiation.

### The Main Marker Is Difference, Not Content

The central conclusion of the study is that an artificial signal does not need to contain complex information, mathematical sequences, or a cipher. According to the authors, the primary and sufficient marker of artificial origin is the artificially created difference from the natural environment itself. This shifts the focus from the question 'what is the signal transmitting?' to 'how does this signal differ from everything nature emits in this range and at this point in space?' Such a framing of the problem, the researchers believe, significantly expands the search space and allows for the consideration of signals that, under traditional analysis, might be filtered out as 'noise'.

### A Supplement, Not a Replacement

The authors emphasize that the proposed methodology is not intended to replace existing SETI systems and protocols. It is positioned as a supplement that allows astronomers to reconsider the very principles of analyzing data received by radio telescopes. Currently, the work remains a conceptual model: it sets a direction for future observational campaigns and proposes a new criterion for candidate selection, but it does not contain specific predictions about where and when a real extraterrestrial signal will be discovered. Nevertheless, the very fact of formalizing an approach inspired by biological communication could already influence how international observatories prioritize telescope time allocation in the coming years.

## Fact-Check & Sources

- [Неожиданная подсказка для поиска инопланетян: ученые SETI вдохновились светлячками](https://www.rbc.ua/ukr/news/neochikuvana-pidkazka-poshuku-inoplanetyan-1793633350.html) - Primary source: the text of the study published in Scientific Reports. All key facts (158 pulsars, 16,000 light-years, mathematical model, biological analogues) correspond to the basis of the article.

## FAQ

### What exactly did SETI scientists propose in the new study?

The researchers proposed searching for extraterrestrial radio signals not by their information content, but by their structural difference from the natural cosmic background. The key marker of artificial origin is the difference from natural radiation itself, rather than the presence of a complex code or cipher.

### What data is the mathematical model built on?

The model is calibrated on data from 158 pulsars—rapidly rotating neutron stars located within 16,000 light-years of Earth. Pulsars serve as the baseline of natural radio frequency radiation against which an artificial signal should stand out.

### Does the new approach replace existing SETI methods?

No. The authors explicitly state that the proposed methodology complements rather than replaces existing search systems and protocols. Currently, it is a conceptual model that allows for a review of the principles of radio telescope data analysis.

### Why did the researchers turn to examples from biology?

Traditional searches were built on the assumption that extraterrestrial civilizations would use technologies similar to human ones. The scientists point out that on Earth, dolphins, crows, and fireflies use fundamentally different communication principles, and limiting oneself solely to the human template could be a mistake.