President's latest project aims to build a supercomputer that can process a billion-billion operations per second.
A man has survived falling to the ground from a 17th-floor balcony, with it all caught on camera.
US dentist Walter Palmer goes to ground after causing storm by killing famous lion in Zimbabwe.
Adrian Gonzalez was a quiet, friendly boy known for his yo-yo tricks. Online, his persona was decidedly darker.
Rolling Stone managing editor resigns in wake of now-retracted University of Virginia rape story.
Former University of Cincinnati campus police officer pleads not guilty in murder of unarmed black man.
Members of the fraternity at the centre of the article, A Rape on Campus, go after magazine for negligence.
US dentist who killed Cecil the lion writes a letter of apology to his patients over the furore.
Russian hackers penetrated high-profile US defence industry by combining Twitter with data hidden in seemingly benign pics.
American dispatcher hangs up on panicked 911 caller trying to help a dying friend.
Partygoers who relieve themselves on certain city streets may be in for a nasty surprise.
NZ joins condemnation over Russia vetoing a bid to prosecute those behind downing of Malaysia Airlines flight MH17.
US Fed leaves the door open for a rate hike at its next meeting for the first time since 2006.
US dentist becomes "most hated man on the internet" after killing beloved lion Cecil in Africa.
In a town like New York it never takes too long for expat Kiwis to meet up.
A Cathay Pacific flight from Hong Kong to Los Angeles diverted to a US military airport in Alaska's Aleutian Islands due to smoke in the aircraft.
Two of the most polarising Republicans - Donald Trump and Sarah Palin - have a mutual appreciation for each other.
Eight children have been injured, three of them badly, in a park in the US.
When Madyson Middleton went missing, it seemed like all of Santa Cruz came out to search for her.
New Horizons mission shows the public is still fascinated by space as Nasa pleads to expand space exploration.
Zion Harvey has big plans - he wants to climb the monkey bars. Throw a football. Play the guitar. Now he can.
"Yeah, listen, we're bingo fuel here in about probably three to four minutes and I got to come in and land."
Jason Stange thought he'd escaped police, until they read about his new starring role.
Virgin Galactic test pilots were unaware of the catastrophic consequences of unlocking the craft's moveable tail section too early.
Man accused of plotting an attack in US using a backpack bomb, inspired by Islamic State.
US prison worker pleads guilty to smuggling hacksaw blades in frozen hamburger meat to help two prisoners escape.
The US Navy is investigating a complaint seeking the evacuation of military lawyers from the base in Guantanamo Bay.
A web of lies reveals 'golden child' Jennifer Pan's gruesome plot.
Interest in all things lions has reached new heights in Milwaukee as the city fixates on a feline version of Bigfoot has dominated local news.
President Obama criticised rhetoric about the Iran nuclear agreement from some leading members of the Republican party.