United States September 12, 2019 7:05 pm Merrimack Valley to Mark 1 Year Since Gas Explosions A year after the Merrimack Valley gas explosions, many people are still struggling to get back on their feet. US & World Videos 2:09 President of MIT calls for shutting down pro-Palestinian encampments 1:00 Three dead in apparent murder-suicide in Lowell 3:05 100 protesters detained at Northeastern University 2:39 Community mourns police sergeant killed on duty 2:50 Community mourns Billerica police sergeant killed on duty