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Saudis Reach Deal With U.S. That Could Let Them Enrich Nuclear Fuel

DAVID E. SANGER, EDWARD WONG AND WILLIAM J. BROAD

U.S. lawmakers and Israeli officials have expressed opposition to such a plan, to be announced Wednesday, fearing that the kingdom could use a civilian nuclear project to develop nuclear weapons.

What to Know About Peptides the FDA Is Considering for Use

DANA G. SMITH

The agency is considering whether compounding pharmacies should be allowed to produce BPC-157, TB-500 and other previously banned peptides.

Jackie, Bald Eagle and Webcam Star, Is Recovering After an Attack in California

ALEXANDRA E. PETRI

Jackie found an online audience through a webcam pointed at her nest in California. She was rescued last week after a fight with other eagles, officials said.

Can This New Enzyme Turn Back the Clock in Bodily Tissues?

K. R. CALLAWAY

In a recent study, scientists devised a way of reversing the buildup of compounds that lead to some age-related diseases.

How lost shipping containers helped map the world’s ocean currents

Thousands of shipping containers vanish every year—what becomes of them?

Is it possible to regain a sense of smell? These scientists are working on it

Smell is one of the most complex and least understood senses

The Rubin Observatory’s greatest legacy will be this ‘movie’ of the sky

Using the new Vera C. Rubin Observatory, astronomers are beginning the largest and deepest survey of the sky. What will they see?

Sunlight benefits and risks: what science says about healthy sun exposure

Could sunlight actually improve your health? New research suggests we may need to rethink total sun avoidance

How a 99-year-old mathematician unraveled a century-old braid mystery

Joan Birman popularized the Burau representation problem decades ago. Now she and two colleagues have a proof that reveals brand new insights into the geometry of braids

Life of Alan Turing Emerges in Richer Detail From Short Story

CLAIRE MOSES

A Cambridge professor has transcribed a handwritten story that the famous mathematician wrote in the year before his death, presenting a different side of him.

Europe's heat waves are killing thousands—and wringing its soils dry

The European continent is facing a dual reckoning this summer—extreme heat is killing thousands and draining its rivers, soils and reservoirs at a record pace

Dunes Sagebrush Lizard Stripped of Endangered Status by Judge

CATRIN EINHORN AND MAXINE JOSELOW

The dunes sagebrush lizard, found only in the oil-rich Permian Basin, was classified as endangered two years ago.

When will the cyclosporiasis outbreaks end?

Thousands of people have gotten sick from cyclospora. Experts can't agree whether the end is in sight

Fungus made fashion—researchers turn living organisms into textiles

Biodegradable textile is alive and can host engineered microbes that can change its color or add UV protection

NHTSA considers new car door safety rules after fatal Tesla crashes

After fatal crashes in which occupants or rescuers could not open Tesla doors, federal regulators are considering rules requiring obvious mechanical releases—but any new standard could take years.