At 8:43 p.m., the MBTA reported ten-minute delays on the Green Line because of signal problems at Union Square, which should still have that new-station smell.

Adam Nichols captured some of the action tonight on the Union Square stub, where Green Line operators have begun driving trolleys to test things out and get familiar with the new line. Read more.

Bow Market in Somerville's Union Square, of course, as Ron Newman shows us, in a photo he took around 4 p.m.

That's when lots of other folks looked up and also spotted rainbows. John McMahon captured the double rainbow over Cambridge's Huron Village: Read more.

Somerville City Councilor Ben Ewen-Campen captured the scene along the Fitchburg Line tracks, next to the impending Union Square Green Line stop, after this afternoon's drenching rain. Note the floating timbers. Read more.

Boston Restaurant Talk reports Bull McCabe's in Union Square has been knocked out of commission.

The Tokist spotted a blast from the past in Union Square: The partial re-emergence of a BayBank sign over an ATM.

Proof its customers were real go-getters: Read more.

Boston Restaurant Talk reports the other Joshua Tree, the one in Davis Square, is closing (the one in Allston, of course, closed years ago).

Snoe was waiting for the bus in Union Square in Somerville when she noticed the people connecting their heads via the magic of plastic wrap. "Public art?" she wonders.

Kat Kirpatrick holds a baby rabbit outside the Union Square fire station today, reports she put it back down.

Sean Olson, a firefighter at the station, reports: Read more.