Hello star people! Could the universe’s expansion be slowing down? After two-and-a-half decades of believing the galaxies are speeding apart at an ever-faster rate, a new study suggests the rate of expansion might be slowing down. EarthSky's Deborah Byrd teams up Dr. Sara Webb, astrophysicist and science communicator at Swinburne University of Technology in Australia, to explain what this new possibility could mean for our understanding of the cosmos. The livestream starts at noon CST (18 UTC) o