Knowledge Bombs

Scientists believe gold formed during a supernova before earth had ever been formed and only accessible because of asteroid bombardment. More in the comments.

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Scientists believe gold formed during a supernova before earth had ever been formed and only accessible because of asteroid bombardment. More in the comments.

The Sahara desert used to have trees, grass, etc during ancient times!
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GIF

  1. Scientists believe all the gold on Earth formed in supernovae and neutron star collisions that occurred before the solar system formed. In these events, gold formed during the r-process. Gold sank to the Earth’s core during the planet’s formation. It’s only accessible today because of asteroid bombardment.