"A new study lead by Nobel Prize-winning scientist, Adam Riess, found that the universe is expanding 9% faster than previous calcultions that were based on studying the aftermath of the Big Bang.-

and they say that "new physics" may be necessary to explain the discrepancy. -Reiss said that the universe "is outpacing all our expectations in its expansion, and that is very puzzling."

NASA astrophysicist John Mather, who has also won a Nobel Prize, said that the two different expansion rates could be down to two things, The Associated Press reported: "1. We're making mistakes we can't find yet. 2. Nature has something we can't find yet."

But Reiss downplayed the idea that the results could be the result of human error. He said that the "mismatch" between the two rates "has been growing and has now reached a point that is really impossible to dismiss as a fluke," he said. "This is not what we expected."

https://www.thisisinsider.com/universe-younger-expanding-faster-than-thought-study-new-physics-2019-4