Scientists took samples from whale blow, identifying possible disease risks for marine mammals in northern seas.

Kyrylo Budanov, who has served as Ukraine’s military intelligence chief, is seen as a potential rival to Mr. Zelensky if elections are held.

Catherine Almonte Da Costa was part of a photo shoot on the mayor-elect’s inner circle. The next day she resigned amid an uproar over antisemitic statements she had posted on social media years earlier.

The mayor’s résumé looks like the broad coalition he built when he swept to victory in November.

In the 1970s, Congress passed a raft of laws to hold the White House accountable. President Trump has decided they don’t apply to him.

Analysts have forecast more stellar gains for the S&P 500. But concerns about inflation, the dollar and sky-high valuations could make for a choppy run.

We look at the uniquely American animosity toward artificial intelligence.

Plus, your Friday news quiz.

The Zaporizhzhia plant, occupied by Russia, would be crucial to powering Ukraine’s postwar recovery.

As enhanced subsidies expire, many Americans covered under the Affordable Care Act are having trouble paying for insurance.

Some start-ups, blurring the lines between home and office, are embracing a “no shoes” policy.

Among them, benefits for minimum wage workers, cancer patients and parents of young children. Also, a change to child abuse reporting.

It was a haven for the young, where they could find hot chocolate when they wanted quiet and affordable drinks when they did not. Then it turned into a place of death.

Former Mayor Eric Adams and some conservative-leaning Jewish leaders criticized the revocation of his executive orders, one of which he signed just last month.

F.C. Barcelona’s liabilities have reached 2.5 billion euros, the result of financial mismanagement and vaulting ambition.

Thousands of New Yorkers packed the plaza ouside City Hall and the streets of Lower Manhattan to see Mayor Zohran Mamdani take office.

Tragically, America is still living in a political era that began on Jan. 6, 2021.

Gynecologists long viewed bacterial vaginosis as solely a women’s issue — until a study that treated their male partners, too, proved otherwise.

Now that the condition is known to spread sexually, there are steps you and your partner can take to prevent it.