  Using cosmological relativity theory, we derive the formula for the
cosmological redshift written explicitly in terms of 1 - "Omega", where "Omega"
= "rho"/"rho"_c is the ratio of the average mass density to the critical
"closure" density. Based on the present-day data of observed redshifts, we
conclude that "Omega" is less than one.

Astrophysics