Science

Emissions rise from the Duke Energy coal-fired Asheville Power Plant ahead of Hurricane Florence in Arden, N.C., in September 2018. Regulators are supposed to make sure Duke Energy delivers reliable power at the lowest possible cost — and that's always been interpreted as cost to the consumer, not cost to the environment. Charles Mostoller/Bloomberg via Getty Images hide caption

Researchers trained Zola the seal to "sing" the Star Wars theme song. Courtesy of Amanda Stansbury hide caption

Chris Marshall has organized pop-up Sans Bars in New York, Washington, D.C., and Anchorage, Alaska. And he has expanded into permanent spaces in Kansas City, Mo., and western Massachusetts. Julia Robinson for NPR hide caption

CRISPR technology already allows scientists to make very precise modifications to DNA, and it could revolutionize how doctors prevent and treat many diseases. But using it to create gene-edited babies is still widely considered unethical. Gregor Fischer/picture alliance via Getty Images hide caption

Researchers dropped more than 17,000 wallets with varying amounts of money in countries around the world. Here, an example of the wallets that held the most money. Christian Zünd hide caption