Yep! This composite illustrates its relative size pretty well. Andromeda would dominate the night sky.

Depends on the size of the black hole. A stellar mass black hole will spaghettify basically anything that gets close to it, but a supermassive black hole doesn’t have strong enough surface tidal forces.

In a supermassive black hole, the tidal forces at the event horizon would actually be relatively weak compared to stellar mass black holes, so it would potentially be feasible to cross the event horizon without being ripped to shreds or spaghettified.

Hypothetically, I guess? But it’s not much of a solution if there is nothing to explain it physically or mathematically. You’d have a better shot arguing divergent timeline theory than basically ghosts.

For starters, it’s not possible and never will be possible. If it were, what kind of physical mechanism would cause a hypothetical traveler to be invisible and intangible, but also allow them to observe? Unless we’re talking about multi-dimensional stuff, but that’s going far beyond the initial hypothetical.

I was there a couple months back. It’s an absolutely incredible sight.

As a side note, I had no idea just how gargantuan Hubble is. I’ve seen its dimensions before but didn’t really grasp how huge it was until I saw the model in person.