United States July 5, 2018 4:57 pm Cross-Country Ski Area Tries ‘Snow Farming' A Vermont cross-country ski area is experimenting with how long it can make snow last throughout the year. US & World Videos 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 4:32 Anti-war protester at Northeastern speaks amid arrests: ‘We are peaceful students'