Black Holes.
Most likely not. The best evidence of the existence of black holes has been found deep within galaxies.
hoe deep are snakes holes in the ground?
Answer
Even though black holes suck through parts of the universe, the universe is inevitably big, and growing so as the universe is being sucked into another dimension by black holes, it is also expanding.
Worm holes have not been discovered.
There are already black holes within the universe
No.
Yes.
Black Holes' can 'eat' any type of matter in the Universe.
The Universe - 2007 Cosmic Holes 2-2 is rated/received certificates of: Australia:G
Primordial black holes are theoretical black holes that could have formed in the early universe. They are thought to be small and have a wide range of masses. If they exist, they could have implications for dark matter, gravitational waves, and the evolution of the universe.
Probably stellar mass black holes