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On June 3, 983 undergraduates and 1,471 graduate students received their degrees.

MIT and Cambridge police and firefighters coordinated the response to potential pipe bombs in New House early Tuesday morning. There was never any threat to campus safety, but the Cambridge bomb squad carried out a se...

Ice sculptures of objects with significance to MIT’s history and the Toast to Tech event adorned tables around Killian.

Balloons representing the class years of alumni present for their class reunions were scattered throughout Killian.

Lightning appeared in the sky over Boston during the tornado and thunderstorm last week.

The class of 2011 was MIT’s 145th graduating class, which coincides with MIT’s 150th year. The discrepancy was caused because the Civil War delayed the start of classes.

Professor Alex H. Slocum ’82 was just as excited as the graduates.

MIT President Susan J. Hockfield uses a sword to cut the MIT-shaped cake.

Seven thousand people arrived at Killian Court to celebrate MIT’s 150th birthday.

Some students displayed symbols representing their major on their mortarboards.

Fireworks light up the sky in front of the Prudential Center, MIT’s 750 feet high (134.32 Smoot) “birthday card.”

President Susan J. Hockfield prepares to give her charge to the graduates.

Alumni and friends dance to music by Boston City Rhythm during the Toast to Tech event on Saturday.

Tim the Beaver made an appearance to admire the cake.

The Paradise Rock Club is at 967 Commonwealth Avenue, Boston.

A stuffed Pikachu is visible on one graduate’s mortarboard. Other creative designs included a graduated cylinder and flags of different nations.

A hazardous materials decontamination tent was set up in the Westgate parking lot early Tuesday morning in response to a New House bomb scare. Cambridge and MIT police eventually determined that there was never any th...