Photo released by CERN on Thursday, Nov 18, 2010 shows an image taken by the ALPHA annihilation detector showing untrapped antihydrogen atoms annihilating on the inner surface of the ALPHA trap.  The events are concentrated at the electrode radius of about 22.3 mm. Scientists at the world's biggest physics lab said they have achieved a breakthrough in the hunt for antimatter.  An international team of physicist at the European Organization for Nuclear Research near Geneva say they created an entire atom made of antimatter and then for the first time managed to hold onto it. (AP Photo/CERN)

Photo released by CERN on Thursday, Nov 18, 2010 shows an image taken by the ALPHA annihilation detector showing untrapped antihydrogen atoms annihilating on the inner surface of the ALPHA trap. The events are concentrated at the electrode radius of about 22.3 mm. Scientists at the world's biggest physics lab said they have achieved a breakthrough in the hunt for antimatter. An international team of physicist at the European Organization for Nuclear Research near Geneva say they created an entire atom made of antimatter and then for the first time managed to hold onto it. (AP Photo/CERN)