There's been a dramatic influx of unaccompanied minors showing up at the border. Dianne Solis of The Dallas Morning News talks about what's behind the numbers.
Police said the shooter entered Reynolds High School with a rifle, killing a student and injuring a teacher. Police later found the shooter dead; the circumstances are unclear.
With the help of grow lights and air exchange fans, NASA is growing lettuce on the International Space Station. The scheme could help keep food costs down — and keep astronauts happy tending plants.
Students come to the school nurse for help with asthma, epilepsy and other chronic problems. Some health systems are letting school nurses read student medical records to help coordinate care.
The search for a universal treatment for snakebites is complicated by the fact that each species has a very different cocktail of toxins. Even knowing a snake's DNA might not help much.
Kenya is heavily reliant on tourism, but advisories by the U.S., Britain and others have contributed to fewer visitors and job losses. Kenyans say the West is punishing them as much as the terrorists.
The tiny, plastic bits are used in consumer products such as skin exfoliants and soap. Environmentalists say when microbeads wash down the drain, they become food to fish and other wildlife.
Under a waiver, energy giant BP will use a drone to conduct surveys over large oil fields in Alaska. FAA regulations ban the commercial use of drones in America's skies.
The run on Mosul was a reminder of the precarious situation of Iraq's central government and raises serious questions about the government's ability to fight terrorism in Iraq.
A short-lived attack near Karachi's airport interrupted prayers for security officers who died in Sunday's violence at the facility. Flights were halted temporarily.