VIDEO: launched helium balloon to test landings

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Nasa launches helium balloon to test landings on Mars

June 8, 2015 Last updated 20:28 BST

NASA has a helium balloon started to test the possible landing systems for future missions to Mars.

The balloon flew from Hawaii with a saucer on a pilot basis weight.

NASA wants to see if there is slow saucer as it fell - and if this technology can be used for landings on Mars.

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