Officials are said to be examining whether a controller had to use an emergency phone just before the crash at LaGuardia. They have yet to determine the cause of the crash and are also focusing on other avenues.

The cousin, Antoine Kassis, was found guilty of conspiracy to support a terrorist group, after trying to sell weapons from the fallen regime to a Colombian militia.

Removing child sexual abuse material from the internet exacts a heavy toll on the workers tasked with reviewing it.

Patrick Radden Keefe’s carefully applied ambition has propelled him to a rarefied perch.

In more than 10 states, laboratories or doctors must notify the state health authorities of each positive test for a marker of the syndrome.

Doubts that the United States would come to the aid of NATO allies increase each time, prompting Europeans to consider an alliance without Washington.

The crew, three Americans and a Canadian, are the first humans to travel to the moon in more than 50 years. They will not land on the surface, but the mission will pave the way for future visits.

What’s really behind all these attempts to revive American industry?

President Trump did not define a clear path out of the conflict, which he estimated would end within three weeks.

The European Union and national capitals are trying to make social media and algorithms less addictive and safer, especially for children.

Without exploitation, “Love on the Spectrum” captures the triumphs and travails of dating. It has become one of Netflix’s most popular shows.

Who needs more than two employees when artificial intelligence can do so many corporate tasks? It’s super efficient — and a little bit lonely.

The Democratic fund-raising group is facing investigations from the Justice Department and congressional Republicans ahead of the midterm elections.

Some women with complex chronic illnesses are using chatbots to search for diagnoses or relief from their symptoms.

“Might I suggest: If the ballroom starts experiencing ballistic assault, maybe we just cancel the ball?” she said on “The Daily Show.”

The U.S. space agency launched a lunar flyby Wednesday, but Beijing is pursuing its own space program with formidable focus. Here’s what we know about it, in photos and videos.

President Trump has not made a final decision, but he has floated the idea of replacing Ms. Bondi with Lee Zeldin, the E.P.A. administrator.