[Physicist]

Physicist; do you have any info on lines of research trying to determine what the dark matter is? What do they know it is is NOT made out of?

It is not made out of any known type of particle. It can be bound gravitationally, as we see here, but it does not form clumps like stars or dust grains.

As for the black hole question, as luck would have it, I answered that before.

[longshadow]

It is not made out of any known type of particle. It can be bound gravitationally, as we see here, but it does not form clumps like stars or dust grains.

As for the black hole question, as luck would have it, I answered that before.

Thanx.