More from David Chandler
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Earth
Influence of global warming seen in changing rains
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Space
Mars rover finds “puddles” on the planet’s surface
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Earth
Climate myths: Higher CO2 levels will boost plant growth and food production
News
Space
Probe’s powerful camera spots Vikings on Mars
News
Space
Introduction: Comets and Asteroids
News
Space
Timeline: Comet and asteroid impacts
News
Space
NASA’s plans could hurt Moon and Mars missions
News
Space
Big new asteroid has slim chance of hitting Earth
News
Instant Expert: Comets and Asteroids
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Timeline: Comet and asteroid impacts
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Technology
Distance record for aircraft broken despite Mayday
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Technology
GlobalFlyer takes off in pursuit of longest flight ever
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