In China, she’s a symbol of women’s rights and a national hero. But Zhang Weili, who defends her U.F.C. title in Florida on Saturday, only cares about one label: champion.

A former Beijing bureau chief shares insights from her time in China.

New commitments to combat climate change.

The research adds to a growing number of findings suggesting the Pfizer and Moderna shots are protective against the variants identified so far.

Defense Minister Ben Wallace apologized on behalf of the government after an investigation found that many African, Indian and Arab soldiers who died in World War I did not receive proper memorials.

After a difficult 10 days, another piece of good news for the maker of a single-shot Covid-19 vaccine.

As demand for tickets recovers, airlines are calling back workers, adding flights and planning for a summer they say could be normal.

To kick off Earth Day, the Biden administration hosted an international climate summit to raise awareness of the increasing impacts of global warming. Leaders from all over the globe renewed their dedication to fighting climate change.

That story, which has sometimes been called a real-life “Lord of the Flies,” was just one episode in a life filled with adventure.

World leaders take on climate change.