Ned Wright, an actual cosmologist, has dissected a recent ‘discovery’ that the universe is older and larger than initially thought on this page:
Quoth the cosmologist:
…the claim in the OSU press release that “the universe could be […] 15 percent older” is incorrect. If the Hubble constant is lower, then CMB anisotropy data require that OmegaM, the ratio of the matter density to the critical density, be higher, so the vacuum energy is lower, and the change in the age of the universe is considerably smaller…the Universe would not be 15% older but perhaps 7% older.
The claim that the Universe would be 15% larger is partially incorrect. Even though relatively nearby galaxies would be 15% further away the actual size of the Universe would go from infinite (flat) to finite (closed) but very big, which is a smaller Universe. The distance to distant quasars at redshift z=6 would increase by only 4%, and the distance to the last scattering surface changes less than 0.5% because this is what is fixed by the CMB.
Thank you, Ned.