Smallpox may be gone but U.S. should better prepare for its return, report says

Seeing the forest for the trees: Species diversity is directly correlated with productivity in eastern U.S. forests

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.