UC Santa Barbara students attend a candlelight vigil following Friday's series of drive-by shootings that left 7 people dead in the Isla Vista section of Santa Barbara May 24, 2014.
NASA's first telescope dispatched to hunt for Earth-like planets that may support life elsewhere in the universe has lost use of its positioning system, threatening its mission.
The White House released 100 pages of emails and documents in its latest effort to blunt the Republicans' sharp criticism of cover-up in the deadly attack on the US consulate in Benghazi.
Obama said that the acting commissioner of Internal Revenue Service has resigned, and Treasury Secretary Jack Lew has accepted.
Cuba and the Netherlands signed an agreement Tuesday to strengthen bilateral ties and cooperation in various fields including healthcare, trade and investment.
A government watchdog sharply criticized the US IRS for singling out conservative groups for extra scrutiny.
The US Navy made aviation history by catapulting an unmanned jet off an aircraft carrier for the 1st time, testing a long-range, bat-winged plane that represents a jump forward in drone technology.
The United States is using both diplomatic and military means these days to deal with the tension on the Korean Peninsula.
The supply shock caused by the North American oil production booming in the next five years will not only have impact on global investment but also reshape transportation, storage and refinery of oil.
Police said Monday they have identified a suspect in the shooting spree at the Mother's Day parade in New Orleans on Sunday that injured 19 people.
Lawyers for the suspect in last year's US movie theater massacre on Monday changed their client's plea to "not guilty by reason of insanity".
New US fitness centers cater to aging baby boomers,like developing a group fitness interval training program.
The Associated Press said the US government secretly seized telephone records of AP offices and reporters for a two-month period in 2012.