There's too much gold in the universe. No one knows where it came from.
By Rafi Letzter - Staff Writer 2 days ago
Something is showering gold across the universe. But no one knows what it is.
An illustration shows the collision of two neutron stars. Scientists had proposed that such collisions
might have filled our solar system with gold, but new research casts doubt on that claim.
(Image: © NASA/Swift/Dana Berry)
Something is raining gold across the universe. But no one knows what it is.
Here's the problem: Gold is an element, which means you can't make it through ordinary chemical reactions — though alchemists tried for centuries. To make the sparkly metal, you have to bind 79 protons and 118 neutrons together to form a single atomic nucleus. That's an intense nuclear fusion reaction. But such intense fusion doesn't happen frequently enough, at least not nearby, to make the giant trove of gold we find on Earth and elsewhere in the solar system. And a new study has found the most commonly-theorized origin of gold — collisions between neutron stars — can't explain gold's abundance either. So where's the gold coming from? There are some other possibilities, including supernovas so intense they turn a star inside out. Unfortunately, even such strange phenomena can't explain how blinged out the local universe is, the new study finds.
Neutron star collisions build gold by briefly smashing protons and neutrons together into atomic nuclei, then spewing those newly-bound heavy nuclei across space. Regular supernovas can't explain the universe's gold because stars massive enough to fuse gold before they die -- which are rare -- become black holes when they explode, said Chiaki Kobayashi, an astrophysicist at the University of Hertfordshire in the United Kingdom and lead author of the new study. And, in a regular supernova, that gold gets sucked into the black hole.
So what about those odder, star-flipping supernovas? This type of star explosion, a so-called magneto-rotational supernova, is "a very rare supernova, spinning very fast," Kobayashi told Live Science.
More:
https://www.livescience.com/where-did-gold-come-from.html
= new reply since forum marked as read
If you know what I mean... 
I'm good with that.
