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NASA’s Mars chief frets over heat shield
Question of the Day
FARNBOROUGH, ENGLAND (AP) - With weeks to go until its latest mission is due to arrive on the Red Planet, the head of NASA’s Mars Exploration Program says his biggest worry is that the spacecraft’s heat shield will not detach as planned.
He says the odds, historically, are against a successful outcome: of the 40 Earth missions to Mars, only 14 have succeeded. He predicted that this latest mission has a medium-to-low risk profile.
The spacecraft launched from Cape Canaveral last November and is due on Mars on Aug. 6.
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