A car crash occurred at the intersection of Mass. Ave. and Memorial Drive at approximately 7:30 p.m. on Thursday evening. One lane of traffic was blocked and a police officer directed traffic at the intersection.

People overlooking Lobby 7 stand silhouetted against emergency lights.

A policeman directs traffic in front of 77 Mass. Ave. Traffic was bumper to bumper from the Harvard Bridge to Central Square.

Students make their way down a darkened Infinite Corridor Thursday evening after power went out in Cambridge.

Much of Cambridge was out of power for two hours on Thursday evening. The blackout was believed to be related to a transmission line.

Professor Sanjay E. Sarma has been appointed as the new Director of Digital Learning. President Reif made the announcement on November 20.

Nicholas A. Pellegrino ’12, a member of the break dance group Imobilare, performs in Lobby 7 during the blackout. Dancers from the group Constructs also performed. Many people, evacuated in the surrounding buildings, stayed in Lobby 7 during the blackout.

NStar employees did repair work on the electric grid near the Central Square subway station.

The Infinite Corridor was only partly illuminated during the power outage.

NStar workers opened a manhole and began work in Central Square.

Out of the Green Building’s many windows, only a few were still lit after the blackout.

A police officer directs traffic on Mass. Ave in Central Square.

J.J. Abrams (left) visits the MIT Media Lab.

Situation for Noon Eastern Time, Friday, November 30, 2012

All lights were out in the Student Center during the power outage.