Matter in the universe (IMAGE)
Caption
The team determined that matter makes up about 31% of the total amount of matter and energy in the universe. Cosmologists believe about 20% of the total matter is made of regular -- or "baryonic" matter -- which includes stars, galaxies, atoms, and life, while about 80% is made of dark matter, whose mysterious nature is not yet known but may consist of some as-yet-undiscovered subatomic particle.
Credit
Mohamed Abdullah, UC Riverside.
Usage Restrictions
None
License
Licensed content