The Max-Planck-Institut für Kernphysik is a research institute in Heidelberg, Germany. The institute is one of the 80 institutes of the Max-Planck-Gesellschaft, an independent, non-profit research organization. From Wikipedia
Experiments at Heidelberg’s Cryogenic Storage Ring confirmed that helium hydride ions stayed reactive at near-absolute-zero temperatures, revealing their underestimated cooling impact on primordial gas.
