There may be a 'dark mirror' universe within ours where atoms failed to form, new study suggests
What if the world of dark matter was a mirror of our own, just with a broken set of rules? That might explain why dark matter appears to be so abundant yet invisible, a new theory suggests. Dark matter is the mysterious, unknown substance that seems to make up the bulk of all the mass in the universe; for every 2 pounds (1 kilogram) of regular matter, there's roughly 10 pounds (5 kg) of dark matter. It doesn't interact with light or normal matter. The only way scientists can detect it is through its subtle gravitational influence on normal matter, such as the motions of stars within galaxies and the growth of super-large structures in cosmic time. It might be easy to think that because matter and dark matter operate with different rules, one would be totally dominant over the other. But despite having wildly different properties, the amounts of normal matter and dark matter are still in the same ballpark. That seems like a strange coincidence. To explain this, scientis...