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Two new studies show that getting more sleep at night can improve everything from a football player's 40-yard dash time to a preschooler's vocabulary and math skills. The results are the latest in a growing body of research that highlights the perks of getting a good night's sleep.

An exhibit about Eros at Rome's Colosseum seeks to illustrate the huge gap between contemporary attitudes of erotic love and how the subject was treated in antiquity.

Some people who live in Carlsbad suspect that toxins in the ground, water and air are causing cancer and other illnesses. Desperate for answers, they’re calling for environmental tests.

Almost 2,000 years before the Inca sun cult appeared, a culture in coastal Peru built a series of towers to track the movement of the sun. Archeologists say it may be the oldest solar observatory in the Americas.

As Athens prepares for the upcoming Summer Olympics, archaeologists are exploring the thousands of years of history that lie just beneath the city's surface. Chris Joyce reports on findings about the civilization that created the first Olympics.

As residents of Montcoal, W.Va., mourn the deaths of at least 25 coal miners in the deadliest U.S. mining disaster in more than two decades, Americans may wonder why the country is still using a fuel that can be dangerous to produce and damaging to the environment. Coal is an inexpensive and efficient way to generate electricity and is likely to remain a power source for the foreseeable future.

College football's national championship will be decided Wednesday when Texas faces defending champion Southern California in the Rose Bowl. Six games on Monday offered a wild series of warmups, while in a final preliminary on Tuesday night, Penn State and Florida State meet in the Orange Bowl.

Along the coast of Peru, a mysterious civilization sprang up about 5,000 years ago. A team of archaeologists believe a climate change led to the rise of this civilization of mound builders, which eventually spread across South America.

The South African cleric and human-rights activist Desmond Tutu joins Renee Montagne to reflect on his long life and his lasting message about forgiveness and reconciliation. His new book, Made for Goodness, is an explanation of his personal sense of spirituality and an invitation to share in his beliefs about the basic goodness of humanity.

Since antiquity, scientists have studied lunar eclipses to learn about the shape and location of the sun, the moon and Earth. But if astronomers have been watching lunar eclipses for thousands of years, is there anything left to learn?