Research News

Scientists have identified special cells in the brain's hippocampus that mimic a trick of some digital cameras. These cells automatically 'tag' the memory of each event in our lives with information about where that event took place — the better to recall, perhaps, where we left our lost keys.

Sometimes highway traffic jams up for no apparent reason. There's no accident, and no real reason to step on the brakes — except to avoid hitting the car in front of you. What causes these backups? An MIT scientist thinks he's found a way to prevent these tie-ups.

Previous estimates of the climate-warming gas were based on the rough number of methane-emitting sources on the ground — such as factories, refineries, stoves, swamps, landfills and cattle herds. But by directly measuring levels of methane in the air instead, a new study puts the total much higher.

By putting light sensors inside a giant ice cube that's a mile beneath the South Pole, scientists detected 28 neutrinos from beyond the solar system. It's just a start – but researchers hope the work could eventually yield a way to see through debris clouds to the core of exploding stars.

Day after day, workers at Michigan State University care for and feed colonies of evolving bacteria. The original microbes have produced more than 50,000 generations in the 25 years since the experiment began. Despite predictions the bacteria might someday reach a point where they would evolve no more, the results show they keep changing.

It takes more than a decisive vision to solve intractable world problems, says Harvard leadership expert Ronald Heifetz. Instead, he advises his students — including budding heads-of-state — to think less like surgeons and more like psychiatrists.

About 22 percent of sun-like stars in our galaxy may have planets orbiting them that are about the size of Earth and bathed in similar amounts of sunlight, according to a new analysis of data from the Kepler Space Telescope.

Huge stone slabs weighing up to 300 tons that now reside in Beijing's Forbidden City were slid more than 40 miles in 15th- and 16th-century China over water-lubricated ice roads in the dead of winter. Though spoked wheels had been around for almost 3,000 years, the ice roads were smoother and required less manpower.

Humans and other primates have really good vision. One scientist thinks that ability evolved in part to help monkeys and humans quickly recognize venomous snakes. When monkeys see photos of snakes, neurons in a specific part of the brain light up. The neurons respond to photos of the reptiles more than to monkey faces.

As the cuts made under the sequester continue, scientists worry that U.S. research will fall behind. Budget cuts already are delaying plans for equipment upgrades and preventing new research — and a new generation of researchers — from getting underway.