The United States formally said for the first time on Wednesday that it had killed radical Yemeni-American cleric Anwar al-Awlaki and three other US citizens in anti-terror strikes abroad.
An independent panel of experts on Wednesday recommended US approval of a new Merck sleeping pill called suvorexant, but expressed concerns over the highest dosage and risks of drowsy daytime driving.
Twitter said Wednesday it was stepping up security measures for the popular messaging service following a series of high-profile breaches by hackers hitting media organizations and others.
Survivors of the killer tornado that ripped through this Oklahoma City suburb rolled up their sleeves Wednesday under a blazing sun and got down to the long, hard task of rebuilding their lives.
A friend of Tamerlan Tsarnaev implicated himself and the Boston bombing suspect in an unsolved triple homicide before FBI agents killed him in a violent altercation Wednesday.
Two US pathologists on Wednesday supported Singapore police findings that an American scientist found hanged last year in the city-state committed suicide and was not murdered as his family claims.
The first-ever manned airplane that can fly by day or night on solar power alone was set to soar early Wednesday on the second leg of its journey across the United States.
The United States on Tuesday condemned Iran's disqualification of hundreds of would-be presidential candidates, accusing the "unaccountable" clerical leadership of seeking to tighten its grip on power.
Chinese state media on Wednesday welcomed news of the first summit between President Xi Jinping and his US counterpart Barack Obama, saying the meeting will help "reduce suspicions" in the relationship.
US President Barack Obama on Monday threw his support behind Myanmar President Thein Sein in his drive to reform a former pariah state but warned that a wave of violence against Muslims must stop.
Microsoft offers a glimpse Tuesday at a new-generation Xbox as videogame consoles evolve into home entertainment centers and adapt to competition from smartphones and tablets.
Thousands of New Yorkers -- including mayoral candidate Christine Quinn -- marched Monday to protest the shooting death of a gay man in the neighborhood that was the cradle of the modern US gay rights movement.
Marissa Mayer has made her boldest move to date as chief of Yahoo! with the billion-dollar purchase of Tumblr, a popular blogging platform she vowed not to ruin after protests from youthful users.
A powerful tornado swept through an Oklahoma City suburb on Monday, tearing down blocks of homes and at least two schools and leaving at least 51 people dead.
A fight between WBC middleweight world champion Sergio Martinez and WBC middleweight world champion Gennady Golovkin of Kazakhstan may take place if the Kazakh fighter wins British Matthew Macklin, Lou DiBella says.
With time ticking down to get things done in his final term, President Barack Obama risks suffering long-term consequences from a series of scandals that have hit the White House in recent days.
Yahoo! geared up for a major announcement Monday said to be a $1.1 billion deal to take over popular blogging platform Tumblr, a move that could bring a younger, hipper audience to the struggling Internet pioneer.
Two of New York's leading auction houses combined for the art world's richest sales week ever, with works going under the hammer for a breathtaking total of more than one billion dollars.
The outgoing head of the IRS told Congress Friday that the US tax agency made "foolish mistakes" in targeting conservative groups, but insisted the action was not politically motivated.