- New measurement of the Hubble constant is consistent with the CMB value.
Main Question or Discussion Point
This paper just came out with a new measurement of the Hubble constant based on the technique of gamma ray attenuation. The result is consistent with the lower (CMB-based) value. Interestingly, they also do a joint analysis of several non-CMB techniques (BAO+BBN+SN+γ-ray attenuation), and find a value completely consistent with the CMB value. Clearly, the jury is still out on this issue, and recent pop-science articles about a "crisis in cosmology" are a bit premature.