  Deep space observations of the James Webb Space Telescope (JWST) have
revealed that the structure and masses of very early Universe galaxies at high
redshifts (z~15), existing at ~0.3 Gyr after the BigBang, maybe as evolved as
the galaxies in existence for ~10 Gyr. The JWST findings are thus in strong
tension with the ${\Lambda}$CDM cosmological model. While tired light (TL)
models have been shown to comply with the JWST angular galaxy size data, they
cannot satisfactorily explain isotropy of the cosmic microwave background (CMB)
observations or fit the supernovae distance modulus vs. redshift data well. We
have developed hybrid models that include the tired light concept in the
expanding universe. The hybrid ${\Lambda}$CDM model fits the supernovae type 1a
data well but not the JWST observations. We present a model with covarying
coupling constants (CCC), starting from the modified FLRW metric and resulting
Einstein and Friedmann equations, and a CCC+TL hybrid model. They fit the
Pantheon+ data admirably, and the CCC+TL model is compliant with the JWST
observations. It stretches the age of the universe to 26.7 Gyr with 5.8 Gyr at
z=10 and 3.5 Gyr at z=20, giving enough time to form massive galaxies. It thus
resolves the 'impossible early galaxy' problem without requiring the existence
of primordial black hole seeds or modified power spectrum, rapid formation of
massive population III stars, and super Eddington accretion rates. One could
infer the CCC model as an extension of the ${\Lambda}$CDM model with a dynamic
cosmological constant.
