The early Universe was a strange place. The Universe was so dense and hot that atoms and nuclei could not form—they would be ripped apart by high-energy collisions. Even protons and neutrons could not ...

After the quark-gluon plasma filled the universe for a few millionths of a second after the big bang, it was over 13 billion years until experimenters managed to recreate the extraordinarily hot, ...

For a few millionths of a second after the big bang, quarks could move freely, but soon normal matter "froze out" of this quark-matter soup. For the first time scientists have compared quantum theory ...

In the first joint result from the world's two leading particle colliders, scientists have determined the mass of the heaviest elementary particle, the top quark. The measurement was made using the ...

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Astronomers recently announced that they have found a novel explanation for a rare type of super-luminous stellar explosion that may have produced a new type of object known as a quark star.

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So far, the LHC has been spending its time ramming protons together, leaving Brookhaven’s Relativistic Heavy Ion Collider (RHIC) the king of the hill when it comes to smashing larger atomic nuclei.

In the middle of the glowing gas cloud of a supernova remnant, about 8,000 light years away, sits the crushed heart of a dead star. Astronomers recently discovered that this neutron star left behind ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Physicist Murray Gell-Mann, one of the ...