All the known matter, both normal and dark, only gives us an $\Omega _ { 0 }$ of about .3.

Question

Quizplus · Accepted Answer

The parameter $\Omega _ { 0 }$ represents the total density of the universe relative to the critical density. Observations suggest that the sum of normal (baryonic) matter and dark matter only contributes to about 30% of the critical density, hence $\Omega _ { 0 }$ is approximately 0.3 for these components. The rest is thought to be dark energy.

All the Known Matter, Both Normal and Dark, Only Gives Ω0\Omega _ { 0 }Ω0​

All the Known Matter, Both Normal and Dark, Only Gives $\Omega _ { 0 }$