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.
A Swedish inventor came up with a wristwatch that counts down the seconds left in your life. He calls it "the happiness watch" because he thinks living with the reality of one's mortality can enhance how we value our lives.
How do you know you're in love? Angry? Or sad? Emotions start off in the brain, then ripple through the whole body. Now scientists have charted where we consciously feel specific emotions. They hope these sensation maps will one day help diagnose and treat mood disorders.
Three groundbreaking scientists, all of whom won the Nobel Prize for their discoveries, died in 2013. Francois Jacob figured out how genes work. Frederick Sanger, who sequenced the first genome, is one of only four people to win two Nobel Prizes. David Hubel found out how to listen to the brain.
The end of December is a crucial deadline for removing chemical weapons from Syria. Now the OPCW, the international organization overseeing that transfer, is backing away from that deadline. NPR's Geoff Brumfiel discusses the plan for chemical weapons removal and disposal, and why it's been so hard.
Archaeologists are now mapping a wall in eastern China that is as much as 15 feet tall in some places, and predates the more famous barrier by 300 years. Hundreds of miles long, it was likely erected to keep neighboring Chinese dynasties from invading each other, historians say.
Each winter, a team of scientists sets out on a search for those rare shooting stars that make it to the ground instead of burning up in the sky. There aren't many better places to look for these space rocks than Antarctica, often in areas where no human has set foot before.
Over the past year, a roaring debate has erupted among physicists about what exactly would happen if you fell into a black hole. Would it be "spaghettification," or a quantum firestorm and oblivion where space ceases to exist? The answer has big implications for fundamental physics.
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