I for one welcome our new T-riding alien overlords

Quick - call Martha Coakley! And the bomb squad!

All your base are belong to us.

T stations are full of hidden wonders. My guess is that this will be a new sign to announce approaching trains, lighting up when appropriate. The alien message has been there for quite some time now.

Elsewhere in Forest Hills, are the little-known "hold bus" lights. These have been around since the old station and exist in most others that have a formal bus platform. When an Orange Line train is approaching the station, the "hold bus" light goes on and drivers are supposed to wait for the train to arrive and take those people. Of course, hardly any of them do that nowadays and it never happens in peak service hours.

Where are these lights? Look in the busways for small incandescent lamps over the bus platforms. There are usually 2 per busway. The "Next train approaching" recording is triggered by the same track signal that lights these lights. The same signal also shuts off the trackman's "safe to proceed" signal for when trackmen are walking the rails to make repairs.

It's old technology re-purposed for the digital age.