b solar
SOLAR TIP:

Astronomers Just Found The Ancient Cosmic Event That Gave Earth Gold And Platinum! A violent collision between two neutron stars 4.6 billion years ago showered the as-yet-unformed Solar System with heavy elements, new research has found.
As much as 0.3 percent of Earth’s gold, platinum and uranium (along with other heavy elements) could have been forged in the fire of a merger 1,000 light-years away, when the Solar System was little more than a cloud of gas and dust.
Image credit: NASA CI Lab

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