Secretary of State John Kerry stressed to his Iranian counterpart that the US aimed to meet a late March deadline for a deal reining in Iran's nuclear programme.
Pope Francis will bring his message of peace and compassion to politically gridlocked Washington in September when he becomes the first pontiff to address the US Congress.
US House Republicans took the increasingly routine step of voting to repeal "Obamacare," a seemingly doomed effort that President Barack Obama ridiculed as making "absolutely no sense."
NASA hailed a proposal by President Barack Obama to boost spending for the US space agency and announced plans for a mission to explore Jupiter's moon, Europa.
Greece will not deliver a strong economic recovery unless authorities loosen austerity programs, US President Barack Obama suggested in remarks that aired.
US rap star Jay Z made a $56-million foray into the music streaming business, buying Norway's Wimp in a bid to compete with giants like Spotify and Apple.
The concert promoter AEG was in no way responsible for Michael Jackson's death, a California court ruled as it rejected an appeal brought by the singer's mother.
A mentally unstable man accused of killing a six-year-old boy in one of America's most famous missing child cases went on trial, 36 years after the crime.