Where does gold in the universe come from?
Astrophysicists traced one source to a neutron-star collision triggered by a merger between galaxies – a cosmic chain reaction 8.5 billion years ago, observed just now.

Astrophysicists trace the origin of valuable metals in space, from colliding stars to merging galaxies
Gold and platinum are found in space, created when two stars collide. Astrophysicists can even trace this process further back, to the merger of galaxies.
theconversation.com · The Conversation
Link author:
The Conversation U.S.@TheConversationUS@newsie.social