Fewer U.S. scientists are pursuing postdoc positions, new data show

Elon Musk's SpaceX is building a network of spy satellites for U.S. intelligence, report says. SpaceX’s dominance in the satellite internet market has given Musk enormous power in matters of war and geopolitics.

The Future of Driving in the U.S. Is Electric—Sort Of

Why Measles Outbreaks in the U.S. Are Happening, and How Vaccination Keeps Us Safe