RHIC collision gif (IMAGE)
Caption
Collisions of heavy ions (the nuclei of atoms) at the Relativistic Heavy Ion Collider (RHIC) recreate matter as it existed just after the Big Bang nearly 14 billion years ago. The collisions "set free" the quarks and gluons that make up the protons and neutrons of the nuclei. The result is a hot soup of these fundamental particles, a quark-gluon plasma (QGP).
Credit
Brookhaven National Laboratory
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OK for use with stories about RHIC
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Original content