The star HD 222925. (STScI Digitized Sky Survey) What's in a star? Well, if you're a highly evolved specimen nearing the end of its life named HD 222925, rather a heck of a lot, actually. Scientists have conducted an analysis of this dim object, and identified 65 separate elements. That's the most elements ever found in a single object outside the Solar System, and most of them are heavy elements from the bottom of the periodic table, rarely found in stars. Since these elements can only form in extremely energetic events such as supernovae or neutron star mergers, via a...