We didnt expect that one event would contribute most of the heavy elements found in the early solar system. Imre Bartos More Quotes by Imre Bartos More Quotes From Imre Bartos Luckily, neutron-star mergers only happen roughly every 100,000 years in the Milky Way, and ones that happen nearby do so less often, so we are not in any immediate danger in any way. and understand how they influenced the evolution of the galaxy. Imre Bartos science A nearby gamma-ray burst would result in a mass extinction. Imre Bartos science