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.