Mission & Principles
Seeking data, not certainty
The Laboratories exist to keep an honest, continuous, long-term record of the signals that persist -- and to resist the temptation to explain them before the record allows it.
Most of what the Laboratories record is ordinary and stays ordinary: a distant transmitter, a seismic event, a passing satellite, a fault in an instrument. The value of a sixty-year record is not in the ordinary detections but in the ones that survive every attempt to make them ordinary. A signal that returns, on schedule, holding its frequency, resisting every mundane explanation, is the reason the Laboratories exist.
We do not claim to know what such signals are. We claim only to have measured them carefully, described them precisely, and kept the record open. That discipline is the whole of our method, and it is harder to hold to than it sounds.
We measure before we interpret.
Every conclusion at the Laboratories begins with a recording and a calibration, never with an expectation. An instrument that reads wrong the same way every time is telling us something; our task is to find out what.
We classify by behavior, not by cause.
A signal enters the catalog described by what it does -- its frequency, its recurrence, its coincidence across stations -- and not by any theory of where it comes from. Cause is a conclusion, not a starting point.
We publish what the record supports.
We state plainly what the data will bear and no more. Where a detection resists explanation, we say so, and we keep it in the catalog rather than force it to a tidy answer.
We keep everything.
Six decades of field logs, recordings, and instrument drawings are preserved in full. A signal that means nothing today may match one recorded forty years ago. The archive is the instrument.