After more than 25 years of colliding particles, the massive Tevatron accelerator at Fermilab in Batavia, Illinois, was turned off for good on 30 September. The collider helped to confirm the standard model of physics - it was where the top quark was found in 1995 - and it spent its final years restricting the possible mass range of the Higgs boson. Scientists are still analysing those data, and Fermilab is shifting to smaller-scale experiments (see Nature 477,379; 2011).
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