Science

Here's a kale salad and sweet potato that did get their portraits taken in the name of medical research. Courtesy of Brandie Jefferson hide caption

The Peoples Climate March, is being billed as a mobilization for climate, jobs and justice. Windsor Johnston/NPR hide caption

The avocados on the right are Hass, America's favorite variety of the green fruit. At left are GEM avocados, the great-granddaughter of the Hass. GEM avocados grow well in California's Central Valley and, in taste tests, they scored better than the Hass in terms of eating quality. Ezra David Romero/Valley Public Radio hide caption

Images from NASA's Cassini spacecraft show the closest-ever views of Saturn's swirled atmosphere and its massive hurricane. NASA/JPL-Caltech/Space Science Institute hide caption

The elaborate Alnwick Garden in northeast England includes a "Poison Garden" that showcases plants with killer properties. Visitors are invited to look but not touch or even smell. Joanne Silberner for NPR hide caption

An image taken on July 19, 2013, by the wide-angle camera on NASA's Cassini spacecraft captured Saturn, its rings and planet Earth, which is the tiny dot in the lower right. NASA/JPL-Caltech/Space Science Institute hide caption