A senior Egyptian official says at least three people died and more than 1,000 were hurt during street clashes with police and army troops after an angry mob attacked the embassy building...

New descriptions of Australopithecus sediba fossils have added to debates about the species' place in the human lineage. Five papers published today in Science describe the skull, pelvis, hands and feet of the ancient hominin unearthed three years ago in South Africa.

The papers reveal a curious mix of traits, some found in apes and earlier Australopithecus fossils, and others thought to be unique to Homo erectus--the tall, thin-boned hominin that emerged around 2 million years ago in eastern Africa and colonized Europe and Asia--and its descendants, including modern humans...

In one of the more curious moments in the Republican debate on Wednesday night, Gov. Rick Perry of Texas invoked 17th-century science in discussing his doubts about climate change. He cited the astronomer and mathematician Galileo Galilei — often called the father of modern science — in suggesting that the current thinking that climate change is a result of human activity could be overturned. “Galileo got outvoted for a spell,” he said...

To understand America’s current standing in the Arab world 10 years after 9/11, it’s instructive to visit Obros, a coffeehouse-cum-nightclub in Beirut. The place is a tribute to Kennedy-era “American kitsch,” and its 35-year-old proprietor Joulan El Aschkar displays a sophisticated touch, from Pierre Cardin–period wallpaper to Mad Men–worthy vintage furniture and electronics to 100 gigabytes of forgotten '60s hits like B. J. Thomas’s “Raindrops Keep Falling on My Head,” rotating with fully intended irony...

A subterranean river said to be flowing beneath the Amazon region of Brazil is not a river in the conventional sense, even if its existence is confirmed.

The "river" has been widely reported, after a study on it was presented to a Brazilian science meeting last week...

If you're looking for something big to mark the 10^th anniversary of 9/11, look again...

The ACLU decided to use the 10th anniversary of the 9/11 attack to comprehensively survey the severe erosion of civil liberties justified in the name of that event, an erosion that -- as it documents -- continues unabated, indeed often in accelerated form, under the Obama administration...

On May 1, 2008, at 4:59 p.m., Brad Kleinerman entered the spooky world of homeland security.

As he shopped for a children's watch inside the sprawling Mall of America, two security guards approached and began questioning him. Although he was not accused of wrongdoing, the guards filed a confidential report about Kleinerman that was forwarded to local police. The reason: Guards thought he might pose a threat because he had been looking at them in a suspicious way...

As rebel negotiators pressed loyalists in the desert town of Bani Walid to surrender peacefully, a convoy of Libyan Army vehicles was reported on Tuesday to have crossed the country’s southern border into Niger in what could represent a shift in the balance of power after six months of conflict...