  An extraordinary event took place recently in Ireland. A group of independent
and professional researchers met to discuss an old heterodox topic with
important consequences in astrophysics and, especially, in cosmology: possible
causes of the redshifts in the spectra of astrophysical objects other than a
Doppler or expanding universe mechanism. Many decades of work have been devoted
to this kind of research, most of it forgotten by the greater part of the
astrophysical community nowadays. But the question is still open, the debate is
still alive, as was shown by the participants in the present Workshop. There is
no smoke without fire, and the existence of many facts and theories on
alternative origins of redshifts may point to some new pathways in physics that
deserve further attention. This was precisely the aim of this meeting. (...)
