New posts in Space Expansion

What wavelength was the CMB originally?

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

Do free particles slow down in expanding universe?

Could the spatially flat universe start small?

Did the big bang create an infinite number of photons?

Why isn't an infinite, flat, nonexpanding universe filled with a uniform matter distribution a solution to Einstein's equation?

For how long CMB was being emitted?

Accelerating expansion of the universe in numbers

A fundamental problem with the cosmological principle?

When did matter/energy come into existence? Before or after the CMB?