Readers respond to a Science Times article. Also: The Arab League’s call for Hamas to disarm.

Technology is making the old ways of teaching ineffective. A new way is starting to emerge.

Why do we still think it’s only about Obama?

Bill White thought being gay was a sin. Then his 15-year-old came out.

Before he was a senator, Mark Kelly was an astronaut. He’s worried about America’s leadership in space.

They went to jail when their boy was killed. Why don’t road planners bear some guilt?

The Supreme Court may extinguish a law that more than any other made the promise of American democracy a reality.

The nuclear taboo is on the verge of collapse.

Recognition will come with strings attached and little chance for holding Israel to account.

No thoughtful person can be pro-Palestinian without also being anti-Hamas.

Five theories about Joan of Arc’s miraculous-seeming career.

The Trump administration is engaged in an increasingly wide-ranging campaign against data it doesn’t like.

Readers respond to a column by Maureen Dowd about men and books. Also: President Trump’s tariff games; relationships outside romance.

The Palestinian activist discusses the Columbia protests, ICE detention and free speech in America.

Its six-member conservative majority has become a key enabler of Trump’s agenda.

The Palestinian activist discusses the Columbia protests, ICE detention and free speech in America.

Three Opinion writers debate whether universities should make a deal with the administration.

A pack of smokes is the opposite of an Oura ring.

Documents show that GoLaxy has emerged as a leader in technologically advanced, state-aligned influence campaigns.

Vladimir Putin has lost faith in the very idea of reaching agreements with the United States.

When Trump fired the top labor statistics official, the aides responsible for running our economy went along for the ride.

Readers respond to President Trump’s firing of the commissioner of the Bureau of Labor Statistics, Erika McEntarfer. Also: Family rifts over politics.

The latest round of tariffs offers further evidence that Trump doesn’t understand how economies work.

Once again, it looks as if Pam Bondi’s Justice Department is attempting to undermine the rule of law.

While the president is right to try to reclaim meaning in American architecture, Gilded Age neoclassicism is not the answer.

This summer, joy might look like dancing beside a fake dinosaur and remembering how good it feels to sing with strangers.

The toxic byproducts of human civilization are everywhere. Even in our bodies.

Creative obstructionism in the Senate, says Tina Smith of Minnesota, has become “a fine art” that has nearly paralyzed the institution.

My son was born at 28 weeks. I know the pain and triumph of neonatal intensive care.