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Images from CERN's Mini Big Bang

After a bumpy beginning, the Large Hadron Collider is finally delivering on its promise of blowing our minds.


After a bumpy beginning, the Large Hadron Collider, the world's most enormous and highest-energy particle accelerator, is finally delivering on its promise of blowing our minds.

This week, physicists smashed lead ions together in the accelerator for the first time, causing a collision that produced temperatures 100,000 times hotter than the sun. "What we're doing is reproducing the conditions that existed at the very early universe, a few millionths of a second after the Big Bang," Michael Tuts, a Columbia University physicist, told CNN.

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