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Crowds gather in front of 77 Mass. Ave awaiting the arrival of President Barack Obama to Kresge Auditorium on Oct. 23 for his clean energy speech.

An excited MIT student awaits the arrival of President Obama in front of 77 Mass. Ave on Friday.

President Barack Obama shows off his newly acquired T-shirt after learning about the energy storage research conducted by Professor Alexander H. Slocum ’82. MIT President Susan Hockfield accompanied Obama during his t...

President Obama chats amicably with Massachusetts Senator John Kerry as they both step out of Air Force One. The President’s private aircraft touched down at Logan airport at about 11:30 a.m. on Friday.

Photographers and video crews pack up supplies after President Obama’s address on Friday in Kresge.

A supporter of Lyndon LaRouche holds up a painting of the 2008 presidential candidates as she awaited the arrival of Obama to the MIT campus on Friday. “Why is Obama blue?” a bystander asked. “You go in there and ask ...

On Oct. 23, students who could not get into Kresge gathered in the Stratton Lounge to watch Obama’s speech on their computers.

President Barack Obama speaks about clean energy at Kresge on Friday. Obama’s speech followed a tour of several MIT labs that do energy-related research.

President Barack Obama’s limousine transported him from Building 13 to Kresge Auditorium via Memorial Drive for his address on Oct. 23.

Members of the MIT community assemble in the shape of

President Obama shakes hands with members of the audience following his speech about clean energy at Kresge on Friday. MIT was given 200 tickets to allocate; Kresge’s maximum capacity is 1,000 people.

President Barack Obama speaks about his administration’s energy policy and MIT’s Energy Initiative at Kresge Auditorium on Friday. The President started his speech jovially mentioning that MIT hackers had placed his m...

Demonstrators on the steps of 77 Mass. Ave. on Friday morning show their support for the Massachusetts Cape Wind project and other policies to combat global warming. Their gathering coincided with the President’s arri...

Kevin A. Rafferty, Toscanini’s new ice-cream chef, has invented 26 new flavors of ice cream since joining the staff three months ago. Among his new flavors are “Drunken Three Musketeers” and “B3.”

Demonstrators stirred up heated arguments with bystanders on Oct. 23 as they awaited the arrival of President Obama to the MIT campus. This demonstrator had another hand-lettered sign that read “Arrest obama for war c...