Last Friday, members of Fossil Free MIT put up blue caution tape around campus, showing where the water level will be during a storm surge like the one caused by Hurricane Sandy, after the projected 2050 sea level rise. The group did so to correspond to the sixth MIT Sustainability Summit over the weekend, with the theme of “Coastal Cities -- Sustainable Future”.

Jake Ohlbaum and Harry Price, members of the Black Moons, perform on the steps of the Student Center on Thursday. The event was part of the Coffeehouse Lounge program, a weekly concert series.

Skipper Laura Dunphy and crew Kayla Ngan approach a turn marked by a buoy during one of the races in the President’s Trophy regatta on Sunday. MIT went on to finish second in that race and in the regatta. The regatta was held on Saturday and Sunday. Due to low winds, only five races took place on Sunday.

Michael Anderson accepts his Darwin statue on Sunday night at BAHFest East, which was held at Kresge for the second year in a row. Six presenters defended their favorite Bad Ad hoc Hypotheses (BAH) explaining a certain phenomenon as being a result of evolutionary adaptation. Anderson was chosen by a combination of judges’ votes and audience applause. In addition to the doubtful looking Darwin, Anderson took home a $500 prize.

On Saturday night, the annual Pumpkin Drop was held at the Green Building. Hundreds of pumpkins were dropped from the top of the building, and spectators used the pumpkin pieces to have a food fight afterwards.

A young girl learns how to DJ at the sound technology exhibit at Girls Day on Saturday at the MIT Museum. The event featured nine hands-on exhibits geared toward young women interested in careers in science and engineering.

A blood-stained zombie watches the progress of a team through the haunted house.

Paige Omura ‘17 and Ty Ingram ‘18 compete in the Crews Regatta on Sunday. Each boat is manned by a skipper and a crew, so in the Crews Regatta, the crew becomes the skipper. Two MIT teams participated, and they placed second and third. BU was the winner.

Protestors march towards Boston Common on Thursday night, Dec. 4, in a rally against police brutality.

A die-in was held at the Harvard Memorial Church at noon on Sunday, Dec. 7, to protest state violence.