Science

China’s Mars Mission Is Up Next to Orbit the Red Planet

The Tianwen-1 mission is scheduled to be the second of three new visitors to Mars this month.

Those We’ve Lost

Arianna Rosenbluth Dies at 93; Pioneering Figure in Data Science

Dr. Rosenbluth, who received her physics Ph.D. at 21, helped create an algorithm that has became a foundation of understanding huge quantities of data. She died of complications of the coronavirus.

Could a Single Vaccine Work Against All Coronaviruses?

Scientists are working on a shot that could protect against Covid-19, its variants, certain seasonal colds — and the next coronavirus pandemic.

People With Dementia Are Twice as Likely to Get Covid, Huge Study Finds

The analysis of nearly 62 million electronic medical records in the U.S. also found that Black people with dementia were at an even greater risk.

China Scores a Public Relations Win After W.H.O. Mission to Wuhan

Experts with the global health agency endorsed critical parts of Beijing’s narrative, even some parts that independent scientists question.

Less Drilling, Less Germ Spray: Dentistry Adapts to the Covid Era

The pandemic has forced dentists and hygienists to change some of the methods for maintaining good oral hygiene, to protect patients as well as themselves.

Coronavirus Variants and Mutations

Tracking recent mutations, variants and lineages.

Before Himalayan Flood, India Ignored Warnings of Development Risks

Long before a deadly flood hit two hydroelectric dams, scientists warned repeatedly that such projects were dangerous in a fragile region made more so by global warming.

A Few Covid Vaccine Recipients Developed a Rare Blood Disorder

A link to the vaccines is not certain, and investigations are underway in some reported cases.

The Coronavirus Crossroads: the Vaccinated, the Stymied and the Waiting

Frustration and at times resentment among those struggling to get a shot, and tempered elation on the other side of the divide.