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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.

The full weight of the recession has come bearing down on the labor market. Employers shed more than half a million jobs in November. The unemployment rate is now 6.7 percent and economists expect it to go significantly higher. Layoffs are accelerating in just about every industry.

Due to COVID-19 postponements, the races known collectively as the World Marathon Majors, are all scheduled from Sept. 26 to Nov.7. It's an unprecedented crunch for both runners and wheelchair racers.

President Biden nominated Damian Williams to head the U.S. Attorney's Office for the Southern District of New York in Manhattan. If confirmed, Williams would be the first Black man to lead the office.

Kenneth Polite, head of the Criminal Division since July, wants to take the most dangerous people off the streets and spend more on preventing violence.

In addition to closing his restaurants, chef and restauranteur Tom Colicchio says he's also had to lay off hundreds of his employees.

Spain has recorded more than 255,000 Venezuelans living in the country, with estimates even higher, as families flee the South American country in deep crisis.

In the latest installment of View From The Top, we sit down with Valerie Jarrett, one of President Obama's closest confidants.

In an interview with WBEZ, Cook County State's Attorney Kim Foxx explains why her office suddenly dropped charges against the actor.

Democratic lawmakers are pressing the e-commerce giant about what it's doing to stop its systems from recommending books and other products with falsehoods about the pandemic and vaccines.