Albeit Universe is expanding seemingly (Hubble 1929), the astronomers have found recently, the galaxies are actually shrinking with time. Because a true galaxy-size increase would be incompatible with standard cosmology, if not with the laws of gravity, authors indicate the presence of systematical errors in Sloan Digital Sky Survey. Albeit I do believe, this finding is actually consistent with particle dispersion model of Universe expansion, in which objects smaller then the wavelength of CMBR are expanding with time, but the objects larger then the CMBR wavelength are collapsing instead in analogy with capillary wave dispersion at the water surface.
In accordance with this model many phenomena related to red shift actually disappaer for CMBR wavelengths (CMBR photons cannot disperse with itself). Shrinking of galaxies is therefore consistent with AWT model of surface ripples dispersion at the water surface and with time symmetry of omnidirectional Universe expansion, predicted with AWT. The Universe should expand seemingly in light shorter then the wavelength of CMBR, which is known as a red shift (Hubble 1929).
In light of wavelengths larger then CMB wavelength a blue shift and attenuation of light with distance should be actually observed. The attenuation of distant radio source with distance has been already observed, too. Last July, US astronomers announced surprising results from a high-altitude balloon experiment called ARCADE-2, which had made careful measurements of the sky at radio wavelengths. The background radio emission, which is the component smoothly distributed across the whole sky, was several times brighter than anyone was expecting.
Regarding blue shift of radiowave source, it has been observed possibly, too as a Pioneer maser anomaly (compare the LaViolette's blueshifting prediction). Blue shift is notoriously difficult to observe, because of lack or reliable reference sources of known frequency (hydrogen vibration spectra of remote sources are absorbed heavily with interstellar gas). But some man-made objects are already remote enough to observe blueshift with artificial sources of radiowaves.
It means, the time arrow is actually violated, our Universe doesn't travel through time in one direction. One half of Universe expands due the pressure of radiation and its entropy increases. The second part (this one larger then ~2 mm) collapses with its gravity instead and its entropy goes down.