Scientists say the long-ago collision of two dead neutron stars may have created more than just a big, bright explosion -- it could also be the source of the Earth's gold reserves. Researchers from the Harvard-Smithsonian Center for Astrophysics made the discovery by analyzing a gamma-ray burst known as GRB 130603B. "We estimate that the amount of gold produced and ejected during the merger of the two neutron stars may be as large as 10 moon masses -- quite a lot of bling!" lead author Edo Berger said.

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