As China and India race to Mars, we'll venture outside our solar system and consider this mind-expanding possibility: There could be 40 billion planets in our Milky Way galaxy that are orbiting stars in a habitable zone that could support life - 40 billion. Makes you kind of puny, doesn't it?
Florida's citrus industry has a new problem. It's long wrestled with crop diseases like canker and greening. But the effort to halt greening has killed millions of bees, as growers have increased their use of pesticides.
And that, in turn, is straining relationships between citrus farmers and their longtime partners, beekeepers. Here's Ashley Lopez of member station WGCU.
ASHLEY LOPEZ, BYLINE: Harold Curtis runs an 1,100-acre grove in southwest Florida. He walks through the rows of trees, packed full of plump, juicy oranges.
Voters in New York City go to the polls Tuesday to choose their next mayor, and it appears all but certain that they'll elect Bill de Blasio, the city's public advocate.
The Democrat has built a wide lead in the polls by distancing himself from the incumbent mayor, billionaire Michael Bloomberg. In fact, de Blasio has made income inequality the central issue of his campaign, name-checking the Charles Dickens novel A Tale of Two Cities dozens of times at debates and stump speeches.
Howard University, one of the country's most prominent historically black schools, has hit a rough patch in recent months.
The school's Faculty Senate recently voted no confidence in leaders of the school's Board of Trustees. That vote came just weeks after Howard's president announced a surprise early retirement and Moody's Investors Service downgraded the university's credit rating, as my Code Switch teammate Gene Demby has reported.
Maltreatment during childhood can lead to long-term changes in brain circuits that process fear, researchers say. This could help explain why children who suffer abuse are much more likely than others to develop problems like anxiety and depression later on.
Great works of ancient engineering, like the Pyramids or Stonehenge, inspire awe in every beholder. But some onlookers also get inspired to figure out exactly how these structures were made.
Howard Stone, an engineer from Princeton University, had such a moment in Beijing's Forbidden City — a city-within-a-city of palaces and temples built in the 15th and 16th centuries. A carved, 300-ton slab that formed a ramp to one structure particularly caught Stone's eye. "How in the world did it get here?" he wondered.