Investors are betting that they can make a dent in global warming, and healthy profits, with companies that alter the atmosphere.
For 14 years, scientists have been growing a tree akin to the Judean balsam — the source of the balm of Gilead — but with no modern counterpart.
Shuttered drugstores pose a particular threat to older adults, who take more medications than younger people and often rely on pharmacies for advice.
The artificial intelligence start-up said the new system, OpenAI o3, outperformed leading A.I. technologies on tests that rate skills in math, science, coding and logic.
The astronomical event, which overlaps with the Winter Solstice, is often overlooked because of the winter chill.
For his next trick, your cosmic correspondent for the past quarter-century will (try to) retire.
A 38-day expedition in the remote Alto Mayo region, where development threatens wild habitats, turned up one previously unknown animal after another.
The Food and Drug Administration released final rules on labeling foods as “healthy,” tightening limits for sugar, sodium and saturated fat.
The U.S. provides nearly half of the aid for global health, including childhood vaccination, H.I.V. treatment and disease surveillance.
Remarkably well preserved ice age remains like those discovered recently in a yard near Scotchtown, N.Y., are rare — but not as rare as you might think.
The agency recommended that the maker of Librela update its label to reflect the possibility of more serious adverse reactions.
The Rhode Island School of Design uses recipes to teach the trial-and-error process of tweaking and refining a product.
The Rhode Island School of Design uses recipes to teach the trial-and-error process of tweaking and refining a product.
The promise of deeper emissions cuts will very likely be ignored by the Trump administration, but officials hoped it would send a signal to the world.
The North Atlantic right whales, which were seen off the coast of Massachusetts, are one of the most endangered large whale species.
Dr. Mark Hyman, a “functional medicine” proponent and longtime friend of Robert F. Kennedy Jr., is finding powerful allies in his bid to treat disease with blood tests and supplements.
Statements by Robert F. Kennedy Jr. and Elon Musk tap into a dispute over whether lifestyle changes or drugs are a better way to treat obesity.
Problems with getting vaccines to families have left many children unvaccinated and in danger of contracting the virus.
Federal agencies have opened at least three reviews into whether the company and its leader complied with disclosure protocols intended to protect state secrets, people with knowledge of the matter said.
Scientists found that the dark markings on a species of fluffy wasp reflected less than 1 percent of light.
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