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Winds foil NASA's plan to launch 'flying saucer'

NASA is regrouping after it lost the chance to launch a "flying saucer" into Earth's atmosphere to test Mars technology.

Winds at a military range on the Hawaiian island of Kauai have not cooperated during the two-week launch window that ends on Saturday.

NASA says winds need to be calm for a helium balloon to carry the disc-shaped vehicle over the Pacific so that it doesn't stray into no-fly zones.

The mission tests a novel vehicle and giant parachute designed to land heavy payloads on Mars, where the thin atmosphere presents challenges in slowing a spacecraft to a safe touchdown speed.

NASA has invested $150 million in the project. It will study its options including extending the launch window, which would be an added cost.

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