Gold in them there hills dust lanes
No, I didn't know what the picture was either. Turns out it's a bunch of galaxies back in the early days of the universe. And those purple clouds may contain lots of gold, certainly heavy metals.
Turns out that it's likely that gold comes from the collision of neutron stars. I know we're made of star dust but hadn't realised this about gold.
And did you know that it is estimated that all the gold in the world, so far refined, could be placed in a single cube 60 ft. on a side. I remember telling my geology teacher something like that, for him to laugh at... Next time I see Mr Curly...