Science

A federal jury in Delaware on Tuesday found that the federal government did not have an ownership claim to lucrative drugs to prevent H.I.V. that are sold by the pharmaceutical company Gilead...

Alarmed by an increase in breast cancer diagnoses among younger women and persistently high death rates among Black women in particular, health experts on Tuesday offered a stark revision to the standard...

LAS PALMITAS, Mexico — Pedro Parra stood by his horse’s side as the animal dropped to the ground under the weight of anesthesia. Its four hooves flailed for a moment, then ceased,...

Finding something infinitesimally tiny is never easy. But it’s much harder when the searcher doesn’t know what to look for.Theodor Diener, a plant pathologist at the federal Agricultural Research Service, faced that...

Stanley Deser, a theoretical physicist who helped illuminate the details of gravity and how it shapes the space-time fabric of the universe, died on April 21 in Pasadena, Calif. He was 92.His...

The NewsEver since the first offshore platforms went up off Louisiana 85 years ago, the Gulf of Mexico has been an oil and gas juggernaut. But decades of drilling has left behind...

Fomalhaut, a star just 25 light-years away, is so dazzlingly bright that it blots out the faint light of other stars around it. Stargazers have been enraptured by its secrets for thousands...

A new genus of butterfly, with dark, eye-like spots on its distinctive orange wings, has been named after Sauron, the arch-villain of J.R.R. Tolkien’s fantasy epic “The Lord of the Rings,” whose...

It’s no surprise that the shortage of primary care doctors — who are critically important to the health of Americans — is getting worse.They practice in one of medicine’s lowest paid, least...

El fin se acerca, en quizás unos 100.000 millones de años. ¿Es muy pronto para empezar a enloquecer?“Habrá un último ser consciente, habrá un último pensamiento”, sentenció Janna Levin, cosmóloga del Barnard...