US President Barack Obama and his wife, Michelle Obama, paid tribute Tuesday to South African ex-president Nelson Mandela ahead of his 94th birthday, as having "abiding humility" and "unbreakable will."
EBay-owned online financial transactions titan PayPal on Tuesday announced that it has bought a San Francisco startup focused on using smartphone cameras to take credit card payments.
President Barack Obama's comments about the soldier accused of the biggest intelligence leak in US history were prejudicial and sought to harm the suspect's defense.
There was no end in sight Tuesday to the blistering heatwave baking much of the United States that has farmers mulling cutting down crucial crops and sent grain prices skyrocketing.
The first-ever daily pill to help prevent HIV infection was approved Monday by US regulators for use by healthy adults who are at risk for getting the virus that causes AIDS.
Some scientists say sporting records are starting to flatline and one day will become near impossible to beat without drugs, gene splicing or futuristic technology.
US screen actor Sylvester Stallone said Monday there was "no greater pain" than losing a child, and called for an end to speculation about the death of his eldest son Sage last week.
US Secretary of State Hillary Clinton on Monday said Washington would use "all elements of its power" to prevent Iran going nuclear and was working in "close consultation" with Israel over how to do so.
The release by prosecutors of allegations of childhood molestation against Florida teen shooter George Zimmerman drew an angry response Monday from the murder suspect's lawyer.
The mother of the Chinese student victim in the "Canadian Psycho" murder and dismemberment case says her "most unbearable pain" is that the killing is still watched online.
Canadian man and his German girlfriend are braving the Taliban to take a rickshaw on one of the world's most dangerous road trips to bring the circus to children in Afghanistan, Iran and Pakistan.
US President Barack Obama refused to apologize Sunday for accusing Mitt Romney of outsourcing jobs while in charge of Bain Capital, a charge his Republican opponent has dismissed as "false."