From the BBC
Media caption
A SpaceX Falcon 9 rocket SpaceX explodes and disintegrates soon after launch
A mission by an unmanned SpaceX Falcon-9 rocket has ended in failure after it exploded after lift-off from Cape Canaveral, Florida.
The rocket was supposed to despatch a cargo ship to the International Space Station (ISS).
The lower segment of the rocket was then meant to turn around and use its engines to bring itself down to a floating barge.
It was US company SpaceX's third failed attempt at the manoeuvre.
Bids in January and April ended in explosive impacts in the Atlantic Ocean.
"The vehicle has broken up," said Nasa commentator George Diller, after Nasa television broadcast images of the white rocket falling to pieces.
"We appear to have had a launch vehicle failure," Diller said.
"At this point it is not clear to the launch team exactly what happened."...