SpaceX unveil human Dragon V2 space capsule

SpaceX has unveiled a re-useable spacecraft which it says will be able to take-off and land anywhere on Earth, "like a helicopter".

The seven-seater Dragon V2 is equipped with side-mounted thrusters and legs to allow it to land vertically.

Since Nasa retired its space shuttle fleet three years ago, the American space agency has been dependent on Russian spacecraft to fly its astronauts into orbit.

The Californian-based company is competing with several other firms to win Nasa contracts.