Could Jupiter Be a Failed Star?

[SpaceTiger]

I would guess that no super massive BH exists in the center of our universe, as the theories go, our universe is continually expanding.

There is no center of the universe in that sense. See here for more discussion.

I don't think that would be possible if even a medium size supernova occurred in our known universe, let alone a massive one in interstellar space.

Supermassive black holes are thought to form by the joining of smaller ones. Only black holes between 1 and 100 solar masses could plausibly form by the collapse of a star.

 

[x8jason8x]

not to argue that at all, but doesn't there have to be a pivotal center somewhere, in some sense? I think personal belief dictates whether the universe is finite or infinite, and this may possibly factor in any hypothesis. I'm relatively new to cosmology (as I'm sure most can tell), so I'm just trying to establish fact from theories.

 

[hexhunter]

in school they have these posters of the milky way, and in the centre it appears is a huge ball of light, so what is this, and why can't i see it every other night when i look out of my window?

or is this just a collection of stars around the centre?

or is it just what they use in high schools to not realize that nobody really knows what is in the centre?

PS: i meant the most massive and not the most dense, I've never used 'massive' as a technical term before

 

[SpaceTiger]

not to argue that at all, but doesn't there have to be a pivotal center somewhere, in some sense?

I know what you mean, but see here.

 

[SpaceTiger]

in school they have these posters of the milky way, and in the centre it appears is a huge ball of light, so what is this, and why can't i see it every other night when i look out of my window?

The posters are probably drawings. We can't see to the center of the galaxy in visible light because there's too much dust in the way.

or is this just a collection of stars around the centre?

It is indeed.

or is it just what they use in high schools to not realize that nobody really knows what is in the centre?

There's also a supermassive black hole there, but it's too small and dark to see.

 

[hexhunter]

The posters are probably drawings. We can't see to the center of the galaxy in visible light because there's too much dust in the way.

yep, just read that elsewhere, thanks for awnsering my n00by questions...

 

[Chronos]

Looking edge on from the outer disk makes that a difficult task. Only radio telescopes can effectively see through the haze between us and the MW center.