Throughout the year, stories about gun violence in the city grabbed the country's attention. Now at the end of the year, the city's crime rate is again big news because it declined so much in 2013, to its lowest level in decades. It's a reality that often doesn't fit the perception of the city.
A Swedish inventor came up with a wristwatch that counts down the seconds left in your life. He calls it a happiness watch because he believes living with the reality of one's mortality can enhance how we value our lives.
Long gone, but never forgotten, Voyager 1 is about 12 billion miles from home and now sailing through interstellar space, scientists were thrilled to confirm in 2013. The spacecraft carries with it a generation's dreams.
In Silicon Valley, zero profit and even zero revenue don't make a company a loser. Tech companies like Snapchat and Twitter, which have not yet turned any profit, can be worth billions of dollars based on future potential alone.
Now is a good time to spot gray whales off the coast of Southern California, but scientists have been seeing an unusually high number of other whales. "The fact that we're getting a chance to see at this time of year fin whales, blue whales, is really a mystery," says a marine biologist.
The event makes its debut in Sochi after a fight that landed in a Canadian courtroom and endured years of setbacks. At trials in Park City, Utah, on Sunday, ski jumper Jessica Jerome, 27, became the first woman to earn a spot on the U.S. Olympic team.
Bloomberg reduced smoking in New York City but failed to match that much copied success with other campaigns, such as one to lower obesity rates by regulating the size of sodas sold in city fast-food restaurants.
The same kind of technology that recommends movies on Netflix or purchases on Amazon is now helping students choose college courses. A new program developed on a campus in Tennessee uses predictive analytics to suggest classes, and is seen as a way to make higher education more efficient.
An explosion Monday tore apart a bus, killing more than a dozen people and injuring many others. It followed Sunday's bombing at a train station in the same city, Volgograd. Suspicion is falling on Chechen extremists who want to create a separate Islamist state.
On Tuesday, Michael Bloomberg ends his three terms as mayor of New York City. His 12 years in office were groundbreaking, locally and globally.