DARK MATTER ON BROOKLYN NIGHTS

Last night I had to miss the Secret Science Club meeting on dark matter with Princeton physicist David Spergel. Disappointing because dark matter is mysterious, fascinating, and invaluable.

Dark matter is invisible, it does not reflect light, but it has a gravitational effect on the tangible matter around it. Dark matter constitutes the majority of mass in the universe- normal matter constitutes about 4% of the universe, dark matter constitutes about 23%.

In the above image, (lifted from Bad Astronomy) we can see the light blue glow which is dark matter pulling on the white dots which are actually entire galaxies. Peep this berkley article and then gain some dark matter wiki-knowledge too. Maybe we can discover some dark matter!