Supreme Court limits warrantless police searches to instances when an officer or evidence is in danger.
The Supreme Court must decide whether an Arizona school went too far in strip-searching an eighth-grade girl for drugs.
The US will launch the Kepler spacecraft Friday to look for other Earths.
Conservation land in Mexico and a desalting plant in Arizona are at the center of a debate over the river.
As lighting moves beyond its utilitarian role, urban planners are embracing it as a way to showcase a city's character.