Dark matter map (stars, black hole, universe)

[harry chickpea]

Kinda cool.

Scientists unveil biggest ever map of universe's dark matter - CSMonitor.com

I still don't understand how they differentiate it from the gravitational effects of black holes.

[Brian.Pearson]

Dark matter is the weirdest stuff. It's one of the reasons galaxies hang together. When I was in college, there was no mention of dark matter. Anyway, it acts like gravity.

Black holes are another thing altogether. It's usually a collapsed star or groups of stars.

That's the quick answer, anyway.

[round tuit]

...dark matter is more... than meets the eye.