No one knows for sure what caused this
There is a slight possibility that it just might
originate from an
The bright colors on the blue background indicate that an
anomalous signal was received here on Earth by a
involved in a
Search for Extraterrestrial Intelligence (SETI).
A search for these signals is ongoing by
several groups including volunteer members of the
Time labels the vertical axis of the
and frequency marks the horizontal axis.
this strong signal was never positively identified,
astronomers have identified in it many attributes
characteristic of a more mundane and ultimately
this case, a leading possibility is that the signal
originates from an unusual modulation between a
and an unidentified Earth-based source.
unusual signals from space remain unidentified.
No signal has yet been
strong enough or run long enough to be unambiguously
identified as originating from an
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