columbia university

Using a tactical vehicle, New York City police enter an upper floor of Hamilton Hall on the Columbia University campus in New York on Tuesday, after protesters took over the building earlier in the day. Craig Ruttle/AP hide caption

A demonstrator protests outside the encampment established in support of Palestinians in Gaza at Columbia University on April 29, 2024. Columbia protesters are demanding their university sell off investments in a number of companies with business ties to Israel. Alex Kent/Getty Images hide caption

A crowd gathers Tuesday evening by the gates in front of Columbia University's Hamilton Hall. Brian Mann hide caption

Pro-Palestinian protesters gather at an encampment on the Columbia University campus in New York City on April 25, 2024. Leonardo Munoz/AFP via Getty Images hide caption

Activists and students participate in an encampment protest at the University Yard at George Washington University on Thursday. Alex Wong/Getty Images hide caption

Georgia State Patrol officers detain a demonstrator on the campus of Emory University in Atlanta during a pro-Palestinian demonstration on Thursday. Mike Stewart/AP hide caption

Students occupy the campus Columbia University on Friday, calling for the school to divest from companies with ties to Israel. Alex Kent/AFP via Getty Images hide caption

NYPD officers detain a person as pro-Palestinian protesters gather outside of Columbia University in New York City on Thursday. Officers cleared out a pro-Palestinian campus demonstration, a day after university officials testified about anti-Semitism before Congress. Kena Betancur/AFP via Getty Images hide caption

Washington-area whitewater kayakers lay flowers on the Potomac's Little Falls rapid near the rocks that entrapped visiting kayaker Ella Mills. Michael Graham hide caption

Nemat Shafik, pictured at a Eurogroup meeting at the EU Council in Brussels on May 16, 2011, will be the first woman to serve as president of Columbia University. Geert Vanden Wijngaert via AP hide caption

It's impossible to know how often college students are getting vaccinated. Rumors of it happening illegitimately are widespread, but many situations aren't so duplicitous upon closer examination, because the vaccinated students are actually eligible, because they work in labs or health care settings, or have underlying health issues that make them high risk for severe COVID-19. Joe Raedle/Getty Images hide caption

Audrey Strauss, acting U.S. attorney for the Southern District of New York, points to an image of Robert Hadden during a news conference Wednesday to announce his arrest and indictment. John Minchillo/AP hide caption

Wallace Broecker, a professor at Columbia University in New York, speaking during the Balzan Prize ceremony in Rome in 2008. Broecker, a climate scientist who popularized the term "global warming," died Monday. Gregorio Borgia/AP hide caption

The Alma Mater statue on the Columbia University campus in New York City. The university has released an initial report on its historical ties to slavery in America. Mario Tama/Getty Images hide caption

Ian Bradley-Perrin (left) and fellow graduate student Olga Brudastova have been active in the campaign to unionize grad students who work as teaching and research assistants at Columbia University. Karen Matthews/AP hide caption