Space
Earth-like alien world looms into view through Kepler telescope
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Lost in Space-Time
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Space
Pluto mission marks end of planet exploration era. Where next?
Analysis
Space
Why getting into orbit is tough 45 years after visiting the moon
Comment
Earth
Travel back in time to Earth's mightiest rivers and mountains
Features
Space
Astronauts prepare to take first bite of salad grown in space
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Space
Destination Pluto: Countdown to the historic New Horizons fly-by
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Space
Pluto probe hiccup caused by overloaded computer
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