An Aside - Dark Matter and Missing Mass

Nucleosynthesis + Big Bang predictions:

• 80% of the predicted baryonic matter in the universe is not visible

Assuming Newton & Einstein are right, gravitational constraints say:

• An additional 90% of non-baryonic matter is not visible

According to the Persic/Salucci/Walker findings:

What we actually study is only 2% of the Stuff in the Universe