Orbital's Cygnus cargo spacecraft was carrying 5,000 pounds of supplies and experiments to the International Space Station.
A highly sensitive blood test for Ebola exists, so why isn't it being used to test all returning health workers from West Africa? Because the virus isn't in the blood in the first stages of infection.
Educators in St. Louis are using events in Ferguson to spark discussions about race and class in a deeply segregated region. Others have found approaching the subject a difficult task.
One Australian report estimated the reef had lost more than half its coral since 1985. The government is considering a new 35-year plan to rescue the reef, but some say it falls short.
How did the FBI get a suspect to click on a link? It created a fake news story about the suspect. When he clicked, spyware glommed on to his computer.
Despite being in one of the most dangerous regions in the world, Nicaragua remains relatively peaceful. Analysts credit its style of policing, which has rejected the iron fist policies of neighbors.
If played just right, members of Congress can see a political payoff from simply doing their jobs and helping out voters who elected them. It's one reason incumbents fare well come Election Day.
The Federal Protective Service will enhance its presence at some buildings in Washington. Homeland Security said public calls by terrorists to attack the U.S. spurred the new measures.
The area of land no longer suitable for farming because of salt degradation is rising quickly. Scientists argue the private sector should help fund efforts to reverse it since it relies on the crops.
Normally, the "central banker of oil" would slow production to push up prices. Not so now. Some say it's a geopolitical tactic aimed at Russia and Iran; others say it's just protecting market share.