Matter & Energy News -- ScienceDaily

• Critical minerals are hiding in plain sight in U.S. Mines
  Researchers found that U.S. metal mines already contain large amounts of critical minerals that are mostly going unused. Recovering even a small fraction of these byproducts could sharply reduce dependence on imports for materials essential to clean energy and advanced technology. In many cases, the value of these recovered minerals could exceed the value of the mines’ primary products. The findings point to a surprisingly simple way to boost domestic supply without opening new mines.
• Fusion reactors may create dark matter particles
  Researchers say fusion reactors might do more than generate clean energy—they could also create particles linked to dark matter. A new theoretical study shows how neutrons inside future fusion reactors could spark rare reactions that produce axions, particles long suspected to exist but never observed. The work revisits an idea teased years ago on The Big Bang Theory, where fictional physicists couldn’t solve the puzzle. This time, real scientists think they’ve found a way.