The New York Times

The predawn blast at a Harvard lab caused minor damage and led to the arrest of Logan David Patterson, 18, and Dominick Frank Cardoza, 20.

A.I. search tools, chatbots and social media are associated with lower cognitive performance, studies say. What to do?

“This is a type of science that has an impact that most people could see in their homes,” said Erin Hecht, a canine researcher at Harvard. “Now there’s just no money.”

Anthony Lennon, a convicted sex offender from Oklahoma, was arrested in Canton, N.Y., where he was studying under an alias, the authorities said.

Mamdani, who campaigned on sweeping promises, can build a positive legacy by focusing on tangible accomplishments.

Heather K. Gerken, a voting rights scholar and former dean of Yale Law School, plans to intensify its emphasis on democracy as it girds for attacks from the Trump administration.

Nonprofit groups and state officials warned that the rule could be used to penalize organizations and agencies at odds with the Trump administration’s political agenda.

Cody Campbell, an oilman, has spent millions paying students to play football at Texas Tech. Now he worries that people like him are ruining college sports.

Two people were seen running from the building afterward, the school said. No injuries were reported.

The university faced fierce criticism after it fired the director of student media and said that news coverage could be published only online.