The end is nigh!

[RamesesII]

Hate to nitpick, but some of your science is just...wrong. First off supernova's, they don't pack the punch to destroy an entire galaxy...in fact nothing does. You have instances where one galaxy impacts another and this results in a much bigger more disorganized galaxy.

The fate of our sun isn't nearly as violent as you've stated. It and our solar system are more than likely the product of past cosmic events like a supernova and the sun doesn't have the mass to end as a supernova. It's going to expand to a cool red giant and eventually become a white dwarf. I BELIEVE this will include a nebula but my knowledge may be off on that one. I do however know for certain the death of our star will not result in a black hole.

Nevertheless whatever end the sun comes to either it goes supernova or whit dwarf it will still have the same effect on the surrounding solar system, the whole topic is about the certainty of our planets death and whether or not our species will be around to see it.

Well of course if you are predicting that the sun doesn't go supernova then of course there is no chance of it creating a black hole

Do I think we'll be around to experience this? Absolutely not. Like other people have stated our survival relies heavily on the stability of nature and there is just too much celestial activity with odds against us that will wipe us out. There are stars close enough to us which can and WILL go supernova before the death of our own sun and this will be something we simply cannot survive through, nothing will.

Well like I stated without a sun there will be no nature no photosynthesis therefore no oxygen, so unless we can create synthetic oxygen then hypothetically we wouldn't survive.