Eric Ralls

Rice kernels swell over a few short weeks. For every day above 86°F (30°C) in that window, a rice plant loses 1.1 to 1.8 percent of its yield, and on cooler days it loses almost nothing.

Microplastic evidence is less certain Here the data thin out, and the authors say so.

A man and a woman buried in the Chilean desert carried smallpox when they died sometime between 1492 and 1631.

Oil and gas sites in the Middle East and in Africa north of the equator put more carbon dioxide into the air than official records account for.

Deena Weisberg is the senior author and a researcher in the Department of Psychological and Brain Sciences at Villanova. She reads the result as a bias rather than a verdict on the writing.

The machine is not new. For decades it has drawn blood from one arm, stripped the cholesterol out, and sent it back. What is new is what else came out: for

“While we will need a more systematic assessment, the initial impression is that most of those awake hours are what we call quiet wake, which means they are not quite asleep but hardly moving at all,” Tøien told Earth.com.

Earth.com staff writer A puma crosses two lanes of asphalt on Washington's Olympic Peninsula, then slips into the timber.

Every night, astronomers face the same puzzle, and this year an AI system stepped in to help solve it.

Brain tissue placed on electrode chips Twelve patients donated the tissue. Epilepsy surgery takes the front of the temporal lobe out whole, and a small block was cut from it and dropped into ice-cold fluid.