Falcon 9 rocket on launch pad at Cape Canaveral
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LIVE: SpaceX rocket launch in Florida

SpaceX is launching an unmanned cargo mission to the International Space Station and will attempt to soft-land part of the rocket at sea.

Normally the spent stages are destroyed as they fall back to Earth, but the American firm hopes to retrieve part of its Falcon rocket by landing it on a barge off the coast of Florida.

If successful, it could lead to far less expensive space launches.

  • 06 Jan 2015