The astronauts on the I.S.S. — including two who were scheduled to return months ago — held a zero-gravity cookie-decorating Read More

Elevating Mr. Kennedy to secretary of H.H.S. “would put the public’s health in jeopardy,” more than 75 laureates Read More

It’s not just the elderly. More than three-quarters of heat-related deaths in Mexico occurred among people younger than 35, researchers Read More

Federal health agencies closed their investigations into the bacterial outbreak that sickened 104 people and was linked to onions on the Read More

Cassava Sciences said that its drug did not significantly reduce cognitive decline in 1,900 people with mild to moderate Alzheimer’s Read More

Journals had retracted papers on superconductors that worked at room temperature and materials science that involved Ranga Dias.Read More

A sharp partisan divide remains over how involved researchers should be in policy decisions.Read More

Dozens of rhesus macaques escaped a research facility in South Carolina. They’re still on the lam.Read More

The company said it would put Quarter Pounders back on the menu, without the raw onions that were considered the Read More

Health officials say that recalls of onions — the suspected source of the contamination — would help lessen the risk to consumers. Read More