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Proton beams circulate in Big Bang machine
Scientists moved Saturday to prepare the world's largest atom smasher for exploring the depths of matter after successfully restarting the $10 billion machine following more than a year of repairs. FULL STORY
MARTIAL TREZZINI / AP
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  Space  
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  Astronauts take spacewalk No. 3 after suit snag
Russian cosmonaut Feoktistov dies at 83
Atlantis astronauts take 2nd spacewalk
Stuck Mars rover makes first move in months
Cosmic Log: Chair floats to final frontier
  Environment  
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Warming’s impacts worsened since Kyoto
5,600 new species found in deep sea
  Watch the opening to ‘100 Heartbeats’
Quiz: Test your wildlife knowledge
  Hollywood goes green
  Innovation  
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Robotic spy planes go green
Zap! Light used to paralyze tiny creatures
Could cheap algae oil power our energy future?
  Mysteries of the universe  
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Rebuilding wetlands: Do hurricanes help?
Tiny shells may be world’s oldest beads
Can evolution make things less complex?
Olive branch solves a Bronze Age mystery
Artificial muscles get a makeover
  Cosmic Log
Stellar views of the meteors

Science editor Alan Boyle's Weblog: This week's meteor shower may not rise to the level of a shooting-star storm, but it's certainly producing a flurry of fine pictures.

E-mail Alan | Cosmic Log home

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  Panda's big day
Giant panda cub Tai Shan makes his media debut at the National Zoo.
AP
  The King returns
The world of King Tut has returned to the United States in a 27-month tour of the country.
Prototype Robot Exhibition Opens At 2005 World Exposition
Getty Images
  It’s a robot’s life
Designers show off robots meant to blend into everyday work and play.
MOUNT ST HELENS
AP
  Mount St. Helens today
Life on the mountain 25 years after the eruption.