Colliding neutron stars & real alchemy
We all know that “we are made of stardust”, but did you know that you could also say “we are made of dead stars”? Neutron stars is the dead remnant of heavy-mass stars, consisting almost purely of neutrons. When two such stars collide we have great conditions for some true alchemy to happen. In fact about half of the elements heavier than Iron is believed to be synthesized in neutron star mergers!