That's cool. I've never had my own observable universe before. First thing I need is a suitable title, then there are going to be some changes around here.
Wouldn't the edge of the observable Universe depend on where you are in the Universe?. In other words, the "edge" we can see is not the same edge as an observer 10 billion light years away can see.
I wonder if someone can answer a question for me. Probably a silly question but I am looking at the "star death" image, the planetary nebula. It looks like we are looking through a big hole in a spherical object, or is it a flat ring around the star we are looking at from above? The main reason...