The shooting attack in Palmyra, Syria, on Saturday struck Iowa National Guard troops. Two were killed, along with an American civilian interpreter; three others were wounded.

Two men toting long guns opened fire on hundreds of people who were celebrating Hanukkah on Bondi Beach in Sydney, the core of the Australian city’s Jewish community.

People who brought their blood glucose down to a normal level had a lower risk of death from heart disease or hospitalization for heart failure after 20 years.

The president attributed the killing of Rob Reiner and his wife to “Trump derangement syndrome.” There was no indication that the couple’s political beliefs were linked to their deaths.

The data centers used for work on artificial intelligence can cost tens of billions to build. Tech giants are finding ways to avoid being on the hook for some of those costs.

Heng Guan fled to the United States and released rare video evidence of China’s clampdown. His supporters say that sending him to Uganda puts him at risk.

The police said on Monday that they expected to bring criminal charges against the surviving suspect, who is in a coma after being shot by the police.

For ecologists, the Covid-19 pandemic has presented a remarkable natural experiment in what can happen to wild animals when humans stay home.

In her first public speech as head of MI6, Blaise Metreweli said Russia was attempting to export chaos to Europe through hybrid attacks and disinformation.

Video of Ahmed el Ahmed disarming one of the gunmen has gone viral, and officials around the world have hailed his bravery.

Lightspeed Venture Partners, a Silicon Valley venture firm, has amassed more than $9 billion to invest in artificial intelligence. That is its biggest haul.

After his son was repeatedly attacked, Rick Kuehner reached out to his suburban school, to the police and to other parents. The violence only got worse.

To mark the winter holidays — an especially popular time to break up — we asked people around the world for their most striking parting words to each other.