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Astrophysicists trace the origin of valuable metals in space, from colliding stars to merging galaxies

By Simone Dichiara, Assistant Research Professor of Astrophysics, Penn State
Eleonora Troja, Associate Professor of Astrophysics, University of Rome Tor Vergata

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.

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