|
The Question
(Submitted January 05, 2009)
Does a ratio of baryonic vs. non-baryonic matter have any part in the
balance of the universe?
The Answer
According to the recent WMAP satellite results non-baryonic matter
occupies as much as ~74% (this is called "dark energy") while visible
baryonic matter occupies only ~4%. The rest of the 22% is called "dark
matter", but the vast majority of the the dark matter in the universe is
thought to be non-baryonic.
Keigo Fukumura
for "Ask an Astrophysicist"
| 
