  The measurements of the absolute magnitudes and redshifts of supernovas Ia
show that conventional physics, which includes plasma redshift, fully explains
the observed magnitude-redshift relation of the supernovas. The only parameter
that is required is the Hubble constant, which in principle can be measured
independently. The contemporary theory of the expansion of the universe (Big
Bang) requires in addition to the Hubble constant several adjustable
parameters, such as an initial explosion, the dark matter parameter, and a time
adjustable dark energy parameter for explaining the supernova Ia data. The
contemporary Big Bang theory also requires time dilation of distant events as
an inherent premise. The contention is usually that the light curves of distant
supernovas show or even prove the time dilation. In the present article, we
challenge this assertion. We document and show that the previously reported
data in fact indicate that there is no time dilation. The data reported by
Riess et al. in the Astrophysical Journal in June 2004 confirm the plasma
redshift, the absence of time dilation, dark matter, and dark energy.
