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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.

The 2007 Nobel Prize in physics will be shared by two Europeans who discovered the physics that allows computer hard drives to compress large amounts of data. The prize was awarded to Albert Fert of France and Peter Grunberg of Germany.

Both campaigns are trying to spin interpretations of the outcome of Tuesday's vote. Clinton said winning Pennsylvania was a victory, regardless of the margin, while Obama's campaign suggested anything less than a Clinton blowout will be too little, too late.

Astronaut Steve Robinson successfully removes two small pieces of fabric that were poking out of the shuttle's heat shield. NASA engineers worried the fabric could cause superheated air to damage the shuttle when it returns to Earth next week.

Why are those netbook computers so popular right now? What's the newest 3G phone on the market? And, are consumers spending less on tech gadgets this holiday season? We speak to Brian Cooley from CNET about this year's most innovative, and sought-after tech gadgets.

The Army Corps of Engineers in New Orleans are simulating hurricane conditions that caused levees to fail two years ago in order to test whether dozens of new pumps in two of the city's canals can hold back a storm surge.

For ten years, the Coronado School of the Arts, or CoSA as it's called, has provided students with an extended-day arts curriculum mixed with regular high school academics. Located at Coronado High Sc

Scientists have confirmed the deadly ebola virus is killing off scores of gorillas and chimpanzees in the Central African nation of Congo. Experts disagree about what humans can do to help their fellow primates.

To celebrate St. Patrick's Day and all things Irish, we have a special hour of music, storytelling and performance for you. The San Diego band Skelpin will perform in our KPBS studios. Members of Write Out Loud will share their favorite Irish literature, and three local Irish will explain what it is about the Irish that Americans just don't understand.

Jan Stiglitz helps run the innocence project at California Western Law School where students work to free wrongfully convicted inmates. Stiglitz traveled to Los Angeles today to convince a judge that