December 28, 2021

Hoping to prevent further disruptions to daily life, the C.D.C. reduced the period that certain infected Americans must sequester.

An inexpensive blood test can warn couples if they face one in four odds of having a baby with the disease. No one ever told Lametra Scott and Rickey Buggs about it.

Scientists on this planet have worked out a variety of techniques to simulate the conditions of other worlds that are near and very far.

With transit use lagging and truck deliveries and car ownership rising, congestion across New York City is likely to be worse after the pandemic than it was before.

The Nord Stream 2 Russia-to-Germany pipeline could offer plentiful natural gas. But tensions with Vladimir Putin are keeping it out of reach.

A Coco Chanel ballet slipper, Beethoven’s hair, Andy Warhol’s painted ticket. “Treasures,” at the New York Public Library, showcases delights from its collections.

The Supreme Court ruled that Memorial International, which chronicled political repression in Russia, must be liquidated.

Building owners may have saved on maintenance when their offices were dark, but new pandemic-related costs are being added to the bill.

Once aimed at small businesses, a 1990s-era tax break has become a popular way for Silicon Valley founders and investors to avoid taxes on their investment profits.

Chile has lots of lithium, which is essential to the world’s transition to green energy. But anger over powerful mining interests, a water crisis and inequality has driven Chile to rethink how it defines itself.

The nation’s largest school district will eliminate its current policy of quarantining classrooms after Covid exposures, in hopes of keeping more children in school during the spring semester.

They see a new interest in mushrooms, a rethinking of chicken and coffee, a resurgence of 1980s cocktails — and, believe it or not, a return to civility.