California

A lack of regulation raises questions over the future of robotics and who ultimately takes responsibility - man or machine.

Tumblr feels the offer as "too low" and views it as "only a first offer".

You can tell a lot about a country by what it finds funny about itself, says new South Africa expat Cath Everett.

Richard Swanson knocked over by pickup truck on coast of Oregon raising funds for One World Futbol.

An auction to have coffee and an hour chat with Apple CEO Tim Cook has sold at auction for £400,000

Assailant slaps police officer to guarantee jail sentence to help her give up smoking.

Legislation has been relaxed to allow a computer-controlled car being developed at Oxford University to be test driven on UK roads.

Dogs attack 63-year-old woman running along desert road outside Los Angeles.

Christian heavy metal singer accused of giving undercover officer $1,000 to kill his estranged wife.

Olympic gold medallist’s yacht capsizes in San Francisco Bay during training for America's Cup.

Disney withdraws attempt to trademark Mexican holiday Dia de los Muertos following online criticism.

Choreographer retracts earlier claim to accuse late pop icon of sex abuse while he was a child at Neverland.

Christian rocker Tim Lambesis accused of hiring San Diego detective to kill estranged wife.

Object seen emitting strange rainbow-like colourful lights in Nasa picture.

Antibiotic-resistant form of gonorrhoea has potential to be as deadly as Aids virus.

The passengers, all in their 30s, were killed when the vehicle caught fire crossing the San Mateo Hayward Bridge.

A 13-year-old boy slashed the neck of his 14-year-old gaming partner after a fight while playing online games

Hundreds of homes are evacuated as 900 firefighters battle to control inferno fanned by strong winds.

Winds and hot weather strengthen flames threatening 2,000 homes on US Pacific coast.

Founding member of heavy rock band dies from liver failure during recovery.

Doors, the puzzle game for lovers of confined spaces

Intel has named chief operating officer Brian Krzanich as its new CEO, while Renée James becomes president.

Chromium present in high street brands popular with youngsters, California study finds.

Tablet shipments in the first quarter of 2013 soared but Apple has lost 20% of it market share in the past year.

NASA and European Space Agency probe Cassini reveals red rose 890m from Earth

Rich Riley, Shazam’s newly-appointed CEO, talks about the potential of Shazaming TV shows and the inevitable stock market flotation.

Menelik Watson is drafted by Oakland Raiders, while Lawrence Okoye joins San Francisco 49ers and Tom Wort the Tennessee Titans.

While Android and Apple continue to dominate, the battle for third place heats up as Windows Phone overtakes BlackBerry.

Paris Jackson reunited with her birth mother Debbie Rowe on her 15th birthday earlier this month.

Sven Olaf Kamphuis held in Spain over cyber-attack on Spamhaus - the biggest in the history of the internet.