A newly discovered rare dwarf galaxy is loaded with precious elements

Discovered just last year, the tiny Reticulum II galaxy is orbiting our own Milky Way, and is one of the closest dwarf galaxies ever found. It’s considered one of the best candidates for detecting the famously elusive dark matter, and now it also looks like the best place for us to figure out how some of our favourite and precious elements originated in the Universe.
This ancient dwarf galaxy - about 98,000 light-years from Earth - has stars that contain a "whopping" amount of valuable elements, called r-process elements - including gold, silver, and platinum.
By analysing the starlight from several of the brightest stars in the Reticulum II galaxy using the Magellan telescopes at the Las Campanas Observatory in Chile, Frebel and her team determined that they contained massive amounts of r-process elements. But here’s the thing - there’s no way they could have produced them on their own.

http://www.sciencealert.com/astrono...dwarf-galaxy-is-loaded-with-precious-elements