NYT Science

The state is imposing more restrictions on fishing this year as the combination of extreme conditions, including low river levels, fish die-offs and the crush of anglers, poses long-term problems.

Frequent screening of healthy, vaccinated people will pick up even the mildest infections. How much testing is too much?

The complete genome uncovered more than 100 new genes that are probably functional, and many new variants that may be linked to diseases.

The renewed sense of urgency was aimed at millions of people who have not yet been vaccinated and therefore are most likely to be infected.

Swift, deadly flooding in China this week inundated a network that wasn’t even a decade old, highlighting the risks faced by cities globally.

Sunscreen on grapes. Toilet water that is treated and used for irrigation. Napa Valley winemakers are taking extreme steps in the face of climate change.

Unpredictable winds, fire clouds that spawn lightning, and flames that leap over firebreaks are confounding efforts to fight the blaze, which is sweeping through southern Oregon.

Cases, hospitalizations and deaths remain far below last winter’s peak, but the director urged people to get fully vaccinated.

The danger from flames and smoke is growing as blazes spread more swiftly and unpredictably as a consequence of climate change. Here are answers to five important questions.

I constantly worry I’m forgetting a deadline, that I’ll be late, that my life is slipping through my fingers. Thinking about geologic time gives me perspective.

This might turn out to be a crucial window to try to prevent Alzheimer’s and other chronic diseases that often accompany older age.

DeepMind has given 3-D structure to 350,000 proteins, including every one made by humans, promising a boon for medicine and drug design.

Floods swept Germany, fires ravaged the American West and another heat wave loomed, driving home the reality that the world’s richest nations remain unprepared for the intensifying consequences of climate change.

NASA’s InSight mission revealed Mars’s inner workings down to its core, highlighting great differences of the red planet from our blue world.

Sydney’s clever and adaptable sulfur-crested cockatoos learn how to pry open garbage bins by watching one another.

The science behind the idea of restoring the intestinal microbiome to an ancestral state is shaky, skeptics say, and in some cases unethical.

Una improbable colaboración ha resuelto un antiguo misterio sobre la supervivencia de los caracoles en las Islas de la Sociedad, en la Polinesia Francesa.

Plus, fluorescent flying squirrels, aging golfers and more feats of athleticism in the Friday edition of the Science Times Newsletter.

The agreement would allow funds to begin flowing from the companies to states and communities to pay for addiction and prevention services.

The law aims to take the cost burden of recycling away from taxpayers. One environmental advocate said the change could be “transformative.”