Is the universal expansion really accelerating?
Or time itself is slowing down?
Recently measurements of light emanating from supernovas in distant
galaxies have indicated that universal expansion is accelerating. The
concept that time is related to expansion of space however gives a
different interpretation. If we consider that time is due to expansion
of space then our local time is the slowest as compared to that of
distant objects when the expansion of the universe was faster.
Once we take this factor into account then the relative blue shifting
of light from distant supernovas as compared to their luminosity only
indicates that time was faster in the past as compared to our time
now. As our local time slows in comparison to the past distant time
the universal expansion will appear to become faster. This however
is an illusion due to measurement of the universal expansion from our
slower time and indicates the opposite that the universal expansion is
actually slowing down.
Recently (December 2007) Professor José Senovilla, Marc Mars and
Raül Vera of the University of the Basque Country, Bilbao, and
University of Salamanca, Spain have suggested a similar explanation
for the observed accelerated expansion. [Jose Senovilla, Marc Mars,
Raul]
