[fishtank]

Figure 1: Typical rotation curve of a spiral galaxy: Speeds (V) in km/s units as a function of distance from the centre of the galaxy (R) in 1000 light-year (LY) units. The upper curve shows the speeds of the stars in disk region determined from their visible light and the gasses beyond that determined from radio frequency emissions. The lower curve shows what standard Newtonian physics predicts should be observed. The discrepancy is made up by positing the existence of invisible dark matter.

CMI article image and caption

[kosciusko51]

George E. P. Box: "Essentially, all models are wrong, but some are useful."

[kosciusko51]

(What scientists know about how the universe works) << (What there is to know about how the universe works)

[Moonman62]

Why look for a new theory of gravity if the big bang cosmology is correct?

...

Because the theory of gravity, as good as it is, has long been known to be incomplete, and cosmology depends on the theory of gravity.

There’s no need for another article that embarrasses religion and makes it look bad.

[PIF]

Its just a very large hologram - try to keep up ... :)

[discostu]

Because science is about asking questions, not about declaring all done.