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It's a mystery how butterflies manage to make their brilliant wing colors, but Yale physicists got a glimpse when they took the question to the lab, breeding dull brown butterflies into purple ones.

Sinner accepted the ban in a settlement with the World Anti-Doping Agency. The timing of the ban means the 23-year-old Italian won't miss any Grand Slam tournaments.

You could soon pay for a latte at Starbucks simply by walking into the store with a smartphone in your pocket and giving the cashier your name. Square, a San Francisco-based payments startup unveiled a deal Wednesday with the world's largest coffee chain that will move its mobile payments products into Starbucks stores around the world.

The Exxon Mobil CEO had, at times, a shaky hearing before the Senate Foreign Relations Committee on Wednesday. He's still expected to win confirmation, but perhaps narrowly.

In her book, Prequel, Maddow describes ultra-right plots to overthrow the government in the days leading up to WWII — a subject she covered in her podcast Ultra. Originally broadcast Dec. 15, 2022.

The lawsuit doesn't specifically mention door plug systems like the one that failed last week. But it adds to the scrutiny of Spirit AeroSystems, which has been linked to other problems.

The House Jan. 6 committee preps for a primetime hearing. Poll: A majority of Americans blame Trump for Jan. 6 insurrection. The pipeline that brings natural gas from Russia to Germany is to reopen.

Arizona's largest hospital system is nearing ICU bed capacity as coronavirus cases surge. Will Humble, the state's ex-health chief, urges a new executive order requiring Arizonans to wear face masks.

NPR's Audie Cornish talks to Eric Lach, a reporter at The New Yorker, about a new report that reveals details around Andrew Cuomo's many abuses of power.

Despite calls for Joe Biden to choose a Black woman as his vice presidential pick, many progressives are urging him to choose Sen. Elizabeth Warren instead.