A vast constellation of celebrities, from Kelly Ripa to the McDonald’s mascot Grimace, have helped push dairy sales.

A trial vaccine has succeeded in generating low levels of antibodies needed to target HIV. It’s a first but much-needed step toward preventing infection.

A store in Singapore is selling lab-grown chicken, but it contains only 3 percent animal cells.

Users receiving weekly injections saw their weight fall, plateau, and stabilize over the course of a four-year trial—but it’s still unclear how long these effects last after stopping taking the drug.

The preliminary results of a clinical trial of using heat exposure to combat depression are in—and are fueling cautious optimism that sauna practice could become an accepted treatment.

Loaded with ever more renewables, the grid will need to store a whole lot of energy. Enter: a new kind of magic school bus—one that can both charge and give power back.