New research claims that dead stars may have forged gold on Earth - The Australian

A strange glow in space has provided fresh evidence that all the gold on Earth was forged from ancient collisions of dead stars, researchers report.
 
Astronomers have long known that fusion reactions in the cores of stars create lighter elements such as carbon and oxygen, but such reactions can't produce heavier elements like gold.
 
Instead, it was long thought that gold was created in a type of stellar explosion known as a supernova.
 
But that doesn't fully explain the amount of the precious metal in the solar system.
 
About a decade ago, a team from Europe using supercomputers suggested that gold, platinum and other heavy metals could be formed when two exotic stars - neutron stars - crash and merge.
 
Neutron stars are essentially stellar relics - collapsed cores of massive stars.
 
Now telescopes have detected such an explosion, and the observation bolsters the notion that gold in our jewellery was made in such rare and violent collisions long before the birth of the solar system about four billion years ago.

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