The full Green Line Extension is open! Post published:December 12, 2022 Post category:Green Line Hundreds rode the first trains, music was played, mayors (current and former) danced, speeches were given, and Somerville became an even better place to live on this fine December day! Keep reading for more photos from Karen Molloy. You Might Also Like Media coverage of the big Green Line decision May 9, 2016 Tufts Daily: Green Line workshop February 1, 2008 Press coverage of mock groundbreaking October 22, 2011