The first unmistakable signal from another intelligence may not be a cheerful greeting. A growing group of researchers is ...
A crowd-sourced search for alien intelligence called SETI@Home is in its final stages, analyzing 100 radio signals of ...
Some of the most tantalizing hints in the search for extraterrestrial intelligence have not been messy or chaotic, but eerily precise. A handful of radio and optical blips have looked so clean, so ...
During the Second World War, there were an estimated 250 signals intelligence (Sigint) sites across the UK from as far south as Cornwall to as far north as the Orkneys. Many important sites are now in ...