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                      Giant Atom Smasher Back in Business

   by Associated Press

   Scientists say they have successfully restarted the world's biggest
   particle collider after a two-year shutdown and upgrade and it's now
   producing almost double the collision energy of its first run.

   The [1]European Organization for Nuclear Research, or CERN, said
   Wednesday the Large Hadron Collider will now run around the clock for
   the next three years.

   The collider underwent a $150 million upgrade after its first run,
   which produced results that helped confirm the existence of an elusive
   subatomic particle, the Higgs boson.

   CERN's director, Rolf Heuer, says physicists hope the new run might
   lead to discoveries that could help "explain remaining mysteries such
   as dark matter.''

   The LHC, located in a 27-kilometer (16.8-mile) tunnel beneath the
   Swiss-French border, is now smashing together protons at 13 trillion
   electronvolts.
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   [2]http://www.voanews.com/content/giant-atom-smasher-back-in-business-a
   fter-2-year-upgrade/2805633.html

References

   1. http://home.web.cern.ch/
   2. http://www.voanews.com/content/giant-atom-smasher-back-in-business-after-2-year-upgrade/2805633.html