The innovative engine now propelling NASA’s Deep Space 1 spacecraft toward its ambitious September encounter with Comet Borrelly just won’t give up, having now run for more than 10,000 hours — 50 times beyond its originally required lifetime.
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The innovative engine now propelling NASA’s Deep Space 1 spacecraft toward its ambitious September encounter with Comet Borrelly just won’t give up, having now run for more than 10,000 hours — 50 times beyond its originally required lifetime.