Last week, CERN announced that the world’s largest particle accelerator will power up again in November. However this time it will run on 3.5 trillion electron volts per beam, about half its expected energy level. Last year, the LHC shut down because of a fault between two superconducting bending magnets but recent tests have confirmed that no further repairs are necessary.

For more on this upcoming event, check out CERN’s press release. And don’t forget to watch Brian Cox’s talk from TED U in 2009, where he explicitly details what went wrong last year: