Reported Detection
Chinese astronomers are reported to have detected a narrowband radio signal from K2-155, a star system approximately 238 light-years from Earth. The signal, designated NBS 260108, was reportedly recorded by the Five-hundred-meter Aperture Spherical Telescope, or FAST, in China. The account was published by Paranormal Daily on November 5, 2026, citing a November 4 report from Unexplained Mysteries, which in turn attributed information to Mail Online.
According to the reports, NBS 260108 appears as a steady tone concentrated around a single frequency. The signal was identified during observations of K2-155, a system known to host three planets described as “super-Earths”—worlds larger than Earth but smaller than the ice giants Uranus and Neptune. The presence of multiple planets has contributed to interest in the observation, although the available reporting does not establish whether any of those planets could support life.
Why the Signal Has Drawn Attention
Narrowband radio signals are of particular interest in the search for extraterrestrial intelligence because some forms of human technology produce concentrated emissions rather than the broad-spectrum radiation commonly associated with natural astronomical sources. However, a narrowband appearance alone is not evidence of an artificial origin. Radio-frequency interference, instrument effects and previously unrecognized astrophysical phenomena can all produce unusual observations.
The reports further state that the signal changed frequency over time, a detail presented as one of the reasons researchers and observers have found it intriguing. Such changes can have several explanations, including the relative motion of the source and Earth, movement of the transmitting source, or variations caused by observing equipment and signal-processing methods. The published account provides no measurements describing the size, timing or pattern of the reported shift, making it difficult to assess its significance.
Evidence Still Unclear
There is currently no indication in the supplied material that NBS 260108 has been independently confirmed by other observatories, detected repeatedly, or shown to originate from the K2-155 system rather than from a terrestrial or near-Earth source. Those steps are central to evaluating candidate signals in the search for extraterrestrial intelligence. Researchers generally seek observations from multiple facilities, precise positional information, repeat detections and the elimination of known sources of interference before assigning a signal lasting scientific importance.
The report also does not identify the observing team, provide a peer-reviewed paper, publish the signal’s frequency or bandwidth, or describe the procedures used to rule out satellite and radio-transmitter contamination. Without those details, the observation should be treated as an unverified candidate signal rather than evidence of alien technology.
Broader SETI Context
The search for technological signals beyond Earth has operated for decades, producing numerous intriguing candidates but no confirmed extraterrestrial transmission. The most famous example, the 1977 “Wow!” signal, was strong and narrowband but was never reliably detected again. Modern projects use increasingly sensitive instruments, including FAST, to examine distant stars and planetary systems while applying strict verification standards.
For now, NBS 260108 remains a report of an unexplained radio observation associated with K2-155. Its steady tone and alleged frequency variation may justify follow-up observations, but the signal’s origin remains unknown. Until independent data and technical analysis become available, the available evidence supports curiosity—not a conclusion that astronomers have detected a message from another civilization.
