I'm not quite sure if this answers your question but if the sun became a black hole and kept the same mass that it previously had, then Earth's orbit would not change. There would be no difference in terms of gravity. However, the Earth would become a very dark place.
Black Hole - comics - happened in 1995.
Black Hole Assault happened in 1992.
A black hole can't really form inside of another black hole. If you think of a black hole forming after a star goes supernova, then there isn't really a star to go supernove inside of the already created black hole. In fact, there isn't even any space inside of the blak hole for anything to happen. Two black holes can join together, but they wil eventually go to one.
It disappears forever
when betelguese goes supernova nothing will happen directly to us, but the star will become as bright as the moon in the night sky, and a black hole may form at the site
Well if it DOES happen and a black hole DOES destroy the Universe, then we won't be around to worry about it.
Objects which approach a black hole will get sucked into it.
Black Hole - video game - happened in 1981.
nothing
If you jumped into a black hole, you would be stretched into human spaghetti.
Should Earth ever collide with a black hole, it would get destroyed.
The Black Hole will explode because the gravity of a Black Hole is formed by the matter that is in the process of going intothe Black Hole, and not that matter that has already gone inside.