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Astronomer Roger Angel completely revolutionized the large telescopes that scientists use to look at the stars. Now he wants to use his mirror technology to make solar energy cheaper and more efficient.

Most of the time, the nuclear world is a quiet, hidden-from-sight community of scientists and engineers. But when a disaster like Japan's happens, they are called on to explain what went wrong.

A researcher at the Large Hadron Collider has turned data from the massive atom smasher into sound. She has two main goals: Create a new way to analyze and study the data, and get non-scientists interested in the research.

At a speech to the Veterans of Foreign Wars, the president said the United States has a responsibility to care for servicemen and -women who have been physically and psychologically wounded in combat.

Growing up in the South Bronx, Juan Carlos Reyes' dream was to be a doorman in Manhattan. A college degree has helped him achieve much more, but Reyes is convinced his success is an aberration — and that few of his peers will ever achieve the American dream.

Paule Constant's novel, first published in France in 1981, has finally been translated into English. Nine-year-old Tiffany is alone in the world; her parents, French colonialists living in Africa, have sent her back to France alone to live and be schooled at the aptly named Convent for Slaughterhouse Ladies.

Taylor armed and assisted fighters in neighboring Sierra Leone in exchange for "blood diamonds." During a brutal war that ended 10 years ago, about 50,000 people died in Sierra Leone.

The Arizona State University Hispanic Mother Daughter Program helps create college bound Latinas, & smarter moms.

She would have been the youngest person to have hiked the entire length of the Grand Canyon - about a thousand miles off trail. Ioana Hociota, 24, was close to her goal when she stepped on the wrong rock and died in a hiking accident.

The retired NASA astronaut, who has written the new book Gabby: A Story Of Courage and Hope, goes into detail about his wife Rep. Gabrielle Giffords' recovery since she was shot in the head on Jan. 8. His constant refrain is that she's "improving all of the time."