How fast is the Universe expanding? Cosmologists just got more confused

By Davide Castelvecchi For much of this decade, the two most precise gauges of the Universe’s rate of expansion have been in glaring disagreement. Now, a highly anticipated independent technique that cosmologists hoped would solve the conundrum is instead adding to the confusion. In results unveiled1 on 16 July and due to appear in the Astrophysical Journal, a team …