
A handout picture provided by the European Organization for Nuclear Research (CERN) on 09 November 2010 of an online reconstructed event from the one of the first lead-ion collisions seen by the Compact Muon Solenoid (CMS) experiment at the CERN in Geneva, Switzerland, November 8, 2010. Scientists say they have succeeded in recreating conditions shortly after the Big Bang by switching the particles used for collisions from protons to much heavier lead ions. After extracting the final proton beam on Novembe first collisions were recorded and stable running conditions marked the start of physics with heavy ions November 8. EPA/CERN / CMS / HANDOUT

A handout picture provided by the European Organization for Nuclear Research (CERN) on 09 November 2010 of an online reconstructed event from the High Level Trigger (HLT), showing tracks from the Inner Tracking System (ITS) and the Time Projection Chamber (TPC) of ALICE (A Large Ion Collider experiment), one of the first lead-ion collisions seen by the ALICE experiment at the CERN in Geneva, Switzerland, 08 November 2010. Scientists say they have succeeded in recreating conditions shortly after the Big Bang by switching the particles used for collisions from protons to much heavier lead ions. After extracting the final proton beam on Novembe first collisions were recorded and stable running conditions marked the start of physics with heavy ions November 8. EPA/CERN / ALICE / HANDOUT

A handout picture provided by the European Organization for Nuclear Research (CERN) on 09 November 2010 of an online reconstructed event from the one of the first lead-ion collisions seen by the Compact Muon Solenoid (CMS) experiment at the CERN in Geneva, Switzerland, November 8, 2010. Scientists say they have succeeded in recreating conditions shortly after the Big Bang by switching the particles used for collisions from protons to much heavier lead ions. After extracting the final proton beam on Novembe first collisions were recorded and stable running conditions marked the start of physics with heavy ions November 8. EPA/CERN / CMS / HANDOUT

A handout picture provided by the European Organization for Nuclear Research (CERN) on 09 November 2010 of an online reconstructed event from the one of the first lead-ion collisions seen by the Compact Muon Solenoid (CMS) experiment at the CERN in Geneva, Switzerland, November 8, 2010. Scientists say they have succeeded in recreating conditions shortly after the Big Bang by switching the particles used for collisions from protons to much heavier lead ions. After extracting the final proton beam on Novembe first collisions were recorded and stable running conditions marked the start of physics with heavy ions November 8. EPA/CERN / ALICE / HANDOUT

A handout picture provided by the European Organization for Nuclear Research (CERN) on 09 November 2010 of an online reconstructed event from the High Level Trigger (HLT), showing tracks from the Inner Tracking System (ITS) and the Time Projection Chamber (TPC) of ALICE (A Large Ion Collider experiment), one of the first lead-ion collisions seen by the ALICE experiment at the CERN in Geneva, Switzerland, 08 November 2010. Scientists say they have succeeded in recreating conditions shortly after the Big Bang by switching the particles used for collisions from protons to much heavier lead ions. After extracting the final proton beam on Novembe first collisions were recorded and stable running conditions marked the start of physics with heavy ions November 8. EPA/CERN / ALICE / HANDOUT