Revolutionary Measurement of Universe's Expansion Settles Cosmic Debate.

University of Minnesota-led researchers have used a first-of-its-kind technique to measure the expansion rate of the Universe, providing insight that could help more accurately determine the Universe’s age and help physicists and astronomers better understand the cosmos. By using data from a magnified, multiply-imaged supernova, the researchers were able to measure the Hubble Constant using a theory developed in 1964 by Norwegian astronomer Sjur Refsdal that had previously been impossible to put into practice. The researchers’ findings don’t absolutely settle the debate, but they do provide more insight into the problem and bring physicists closer to obtaining the most accurate measurement of the Universe’s age.