1 00:00:08,340 --> 00:00:12,420 The Continued Discrepancy in the Universe's Expansion Rate 2 00:00:14,180 --> 00:00:21,860 The Universe might be expanding event faster than we previously thought. 3 00:00:23,900 --> 00:00:31,960 Astronomers have measured Cepheid Variables - stars that pulsate with a period related to their luminosity - in the Large Megallanic Cloud... 4 00:00:33,780 --> 00:00:41,220 ...to improve cosmic distance calibrations and to calculate how fast the Universe is flying apart. 5 00:00:42,800 --> 00:00:51,000 But their results don't quite match measurements from the Cosmic Microwave Background - the afterglow of the Big Bang... 6 00:00:53,180 --> 00:00:59,500 ...they show that theUniverse is expanding a bit faster. 7 00:01:01,120 --> 00:01:08,900 Repeated measurements suggest this discrepancy is not a fluke - making it an exciting development in cosmology. 8 00:01:11,880 --> 00:01:18,840 New physics might be needed to explain the divergence - possible involving dark matter and dark energy. 9 00:01:24,480 --> 00:01:29,180 Translated by Bethany Downer.