A Jovian Moon With Earth-Like Tectonics
The icy surface of Jupiter’s moon Europa may undergo processes similar to plate tectonics on Earth.
Heard on the Air
Explore Episode Segments
Blue whale populations are only a fraction of what they once were globally, but a California population has nearly made a comeback.
As of 2010, generic drugs comprise almost 80 percent of the American pharmaceutical market, compared to 10 percent in 1960.