ALICE detects the conversion of lead into gold at the LHC

The ALICE analysis shows that, during Run 2 of the LHC (2015–2018), about 86 billion gold nuclei were created at the four major experiments. In terms of mass, this corresponds to just 29 picograms (2.9 ×10-11 g). [...] While the dream of medieval alchemists has technically come true, their hopes of riches have once again been dashed.

I mean, we still can't turn a ring of lead into a ring of gold, but this is really neat.