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Space
NASA fires astronaut Lisa Nowak
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Health
Male circumcision to fight HIV poses risk to women
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Earth
Two earthquakes rock Sumatran coast
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Space
Back-up satellite to secure Galileo navigation system
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Space
Shuttle Atlantis rolls back to shelter for repairs
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Earth
Tornadoes wreak havoc across US
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Space
Russia and South Korea plan home-grown launch pads
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Health
Expert panel supports US bird flu vaccine
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Space
New report highlights threats to space station
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Health
Compact lung-cancer breath test may be possible
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Space
Comet chaser Rosetta skims around Mars
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Space
Comet probe prepares for Mars flyby
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