"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."
...
"This symmetry would help explain why dark matter and regular matter have roughly the same abundances."
So 1 is "roughly the same" as 5, or is this an orders-of-magnitude comparison?
...
"This symmetry would help explain why dark matter and regular matter have roughly the same abundances."
So 1 is "roughly the same" as 5, or is this an orders-of-magnitude comparison?