Science

After an unusually long tenure of nearly 30 years as president of the American Museum of Natural History, Ellen V. Futter on Wednesday informed the board that she would step down next...

The Omicron subvariants known as BA.4 and BA.5 now represent 13 percent of new coronavirus cases in the United States, up from 7.5 percent a week ago and 1 percent in early...

La semana pasada, los Centros para el Control y la Prevención de Enfermedades (CDC, por su sigla en inglés) actualizaron sus lineamientos para los viajeros que desean protegerse contra la viruela del...

The Centers for Disease Control and Prevention updated its guidance last week for travelers wishing to protect themselves against monkeypox. This was one of its recommendations: “Wear a mask. Wearing a mask...

SALT LAKE CITY — If the Great Salt Lake, which has already shrunk by two-thirds, continues to dry up, here’s what’s in store:The lake’s flies and brine shrimp would die off —...

He replied to an email saying she wanted only a friendship with a string of messages, demanding to know how she could be so certain and accusing her of spurning his love...

“Everything we perceive is inconsistent with the physical reality of the world,” Dr. Purves said. “Everything we see, whether it’s line length, color, brightness, you name it.”So, you are not really being...

Visionaries is a limited series that looks at figures who are trying to transform the way we live.Ravindra Gupta had studied drug-resistant H.I.V. for more than a decade when he first encountered...

WELLINGTON, New Zealand — The volunteer clambered down the cliffs, progressing along a series of knots on a thin rope as he made his perilous way about 100 feet down a steep...

On the January evening when the superintendent introduced staff from Generations Family Health Center, the nonprofit health care group that was to provide services in the school, the visitors peered out of...