Massachusetts July 10, 2023 10:26 am What are the northern lights? The Northern lights, also called an aurora borealis, are moving waves of lights seen in the night sky. US & World Videos 24:50 @Issue: Final push to convince undecided voters 24:47 @Issue: Early voting starts in Massachusetts 29:57 Gary Washburn talks new Celtics book, shares thoughts on upcoming NBA season 0:31 Red Sox legend Luis Tiant dies at 83 24:49 @Issue: 30 days left until the presidential election