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According to the facial feedback hypothesis, the simple act of putting a smile on your face can boost your mood. But recent research shows pasting on a grin can have mixed results.

Acclaimed guitarist Derek Trucks knows something about musical lineage. He joined his uncle to play in The Allman Brothers Band, and has just released a new studio album with his own band. Songlines is named for a book about Aboriginal creation myth.

Science fiction's job is to give us a map of where we're headed. From Jules Verne to William Gibson, sci-fi authors describe their visions of the future, and how people might live in it. We ask Intel's futurist for his list of favorite sci-fi books.

In addition to shutdowns of national parks (including Alcatraz and Yosemite) and the supplemental nutrition program for women, infants and children, the mandatory furloughs are affecting a wide range of government science and health agencies.

Three Omaha locations were recently added to the National Register of Historic Places by The National Park Service.David Calease, National Register…

Nineteen states have passed legislation to make daylight saving time permanent. But those laws won't take effect until Congress makes it legal. And the medical community sees one major problem.

Matthew Miller, of Bakersfield, Calif., had entered North Korea on a tourist visa. The country says he sought to be thrown in jail to investigate human rights issues.

Israeli forces recover the bodies of six hostages in Gaza. The families of the hostages say all were kidnapped alive in the Hamas-led attack on Oct. 7 — they died while they were being held.

As the Defense Department continues to identify the remains of servicemen lost in foreign wars, Hattie Johnson informs the families who have been waiting decades for information.

John Dingell of Michigan, the longest-serving congressman in U.S. history, announced he won't run in 2014. As Tracy Samilton reports, Dingell's state will lose more than an icon when he retires.