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By smashing gold particles together at super-fast speeds, physicists have basically melted protons, creating a kind of "quark soup" of matter that is about 250,000 times hotter than the center of the sun and similar to conditions just after the birth of the universe.Scientists reported in 2005 that they suspected they had created this unique state of matter, but for the first time they have verified that the extreme temperatures...


 Big Bang proton neutron quark gluon temperature liquid universe
Protons, among the building blocks of atoms, are even smaller than we thought—and the unexpected discovery may alter some of the most trusted laws of physics.


 physics proton size light cosmology
A thin band of antimatter particles called antiprotons enveloping the Earth has been spotted for the first time.


 physics antimatter proton magnet Van Allen belt planet Solar System space travel fuel