No one knows for certain
if the Shroud of Turin is genuine. But if we
focus only on what is published in peer-reviewed
scientific journals then we know certain facts. The
Shroud is certainly at least 1300 years old.
It could be older. The images are unexplained. As
Philip Ball wrote in Nature, in
commenting on a 2005 article in
Thermochimica Acta
that showed that previous carbon 14 dating was
invalid, "It is simply not known how the
ghostly image of a serene, bearded man was made" If
we turn to a 2003 article in
Melanoidins
we find that the images on
the Shroud of Turin are a chemical
caramel-like darkening of an otherwise clear starch
and polysaccharide coating on some of the shroud’s
fibers It is clearly not paint.
There is the enigma
of the second face on the reverse side of the Shroud
as reported in 2004 in the Journal of Optics
published by the Institute of Physics. Other
peer-reviewed evidence is clear: The bloodstains are
real blood, human blood. The images have peculiar 3D
properties. The Shroud was bleached by
methods used in the first century and not later in
the medieval.
Throw in some
history, and given what is known scientifically, and
there is ample reason to infer that the Shroud of
Turin is genuine. The thoughtful skeptical
inquirers aims not to achieve this or that
conclusion. Rather their aim is the process of
honest skeptical inquiry. There is ample room for
the thoughtful skeptical inquirer in Shroud
of Turin research. But the articles that appear now
and then in the Skeptical Inquirer
magazine are preposterously polemic, filled with
arguments refuted by peer-reviewed scientific
observation and lack proper historical
investigation.
The American
Chemical Society website quotes a thoughtful
skeptical inquirer, the late Raymond Rogers, the Los
Alamos scientist who showed that the carbon 14
dating was invalid: "The observations do not prove
how the image was formed or the "authenticity" of
the Shroud. There could be a nearly infinite number
of alternate hypotheses, and the search for new
hypotheses should continue."