New posts in Cosmology

Why does nobody ever consider the possibility that the universe is not smooth?

Is the "cosmological constant tension" the prime reason that we believe the expansion of the universe is accelerating?

Ambiguity in applying Newton's shell theorem in an infinite homogeneous universe

Why is quantum gravity non-renormalizable?

How do we know that dark matter energy density scales as $\rho\propto a^{-3}$?

What wavelength was the CMB originally?

Does the universe have a fixed centre of mass?

Where is the work done of adiabatically expanding universe going into?

Do free particles slow down in expanding universe?

Does string theory accommodate effects of dark energy?