Recent content by brand1130

Would you say that a galaxy that formed 10 billion years ago, still has 99%+ of its mass today?

Ahh, I was hoping for a more exciting answer than cold rocks. =( Decay into pure energy, and then renew.

Summary: Does the gravitational pull of a dead galaxy diminish? I have a question about dying galaxies. Most of the answers I've found thus far relate to them losing the ability to generate stars, or to general disbursement of mass caused by dark matter. This is not what I'm looking for. I am...