As outrage grows over the killing of Cecil the lion, Zimbabwe called on the United States to extradite the American dentist who shot the lion this month.
Uber is now the most valuable startup in the world.
The U.S. government has "very recent indications" that "Jihadi John" -- the notorious hooded ISIS executioner seen in violent hostage beheading videos -- is alive. CNN's Barbara Starr has more.
A second Australian surfer has warded off a shark attack by punching the predator after it bit his leg, police in New South Wales said Friday.
After nearly 15 years of development and a half-dozen years of testing, the first squadron of F-35 Joint Strike Fighters is officially operational.
Facebook founder Mark Zuckerberg reveals in a personal post that he and his wife have experienced three miscarriages, but they are expecting a baby.
Jon Stewart's "Daily Show" reign will so come to an end, and the host plans to go out with a big bang of talent.
A former Pennsylvania hospital employee has been indicted on charges he performed flawed genetic tests on 124 late-stage cancer patients and then lied about it.
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The husband of a technology executive killed when a speeding Amtrak train derailed in Philadelphia has sued the railroad for wrongful death.
A new way of allowing paralyzed or severely injured people to control on-screen cursors taps directly into the brain and shows great promise.
On Friday, it was revealed in a health care statement that former Secretary of State and current Democratic presidential candidate Hillary Clinton has hypothyroidism as well as allergies, and is taking Armour Thyroid.
The U.S.-trained rebels came under fire from al Nusra forces in northern Syria and for the first time called in U.S. airstrikes.
Reviews of Windows 10 have been glowing, but one prominent tech CEO is giving it a big thumbs down.
The horse racing industry's focus will be on New Jersey this weekend, as Triple Crown winner American Pharaoh runs in the $1.75 million Haskell Invitational at Monmouth Park.