February 17, 2023 4:38 pm What Are the Northern Lights? The northern lights are a beautiful natural phenomenon, but do you know what causes them? US & World Videos 1:32 Patriots host annual children's holiday party 2:07 Medford Paraprofessional Union leader is subject of embezzlement investigation 2:35 Worcester city councilors demand answers after DOJ report on police misconduct 2:48 Hate grocery shopping? Robots could soon do it for you 2:08 Lawrence Fire Department's ‘Station 8' uses music to teach safety to kids
