On May 4, a 130-ton giant magnet left the Belfort assembly plants to join the NeuroSpin research infrastructure at the CEA center in Paris-Saclay (Essonne). This high-tech object, which is the main component of the world's most powerful MRI (Magnetic Resonance Imaging) scanner for human brain imaging, will produce a magnetic field of 11.7 Tesla. To reach this power, the CEA's research engineers had to design a non-standard instrument. Before finding its place under the arch intended for NeuroSpin, this magnet must travel several hundred kilometres on roads, waterways and maritime routes. The convoy arrived at its destination on 18 May 2017.