The Large Hadron Collider at Cern in Geneva has been fired up for the first time since its high-profile failure last year.
The huge particle accelerator successfully powered some protons and lead ions around short sections of its 17-mile ring on Friday, and everything seemed to be working correctly.
The beams of protons and lead ions were fired clockwise through the section of the ring housing the “A Large Ion Collider Experiment” (ALICE) detector, before protons alone were fired anticlockwise through the LHCb detector.
The multi-billion-dollar machine, built over almost 20 years, was set to launch in late 2008 but broke down after it overheated during a test run.
The relaunch was pushed back to late 2009 as more parts had to be replaced, and CERN was recently scandalised when a LHC scientist was found to have approached al-Qaeda for work!
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There is much controversy surrounding the LHC, -recreating the time just after the big-band may be dangerous and no one really knows what is going to happen.
Some scientists strangely say the machine may even be sabotaging itself from the future:
RealUfos would like to know your thoughts on this - is the LHC a safety concern?