Out of this spacetime foam, the chaos of all these different timelines, one bubble just kept on going and that is our universe, or in the Marvel language, the sacred timeline, the Newtonian world that we see around us.
The star becomes a " black hole" because a singularity distorts the spacetime around it so severely, that any light which falls into the pit is held captive forever. Nothing escapes.
Wormholes can connect distant points in spacetime, meaning you could conceivably use one to bridge not just the gap between here and a distant galaxy, but the span between 2023 and 1923.
This is roughly analogous to the effect that a massive object such as the Sun(the iron ball) has on spacetime (the material): it stretches and curves and warps it.
Reitze spoke with others at a press conference in Washington, DC this past week. The scientists announced they were able to see ripples in the fabric of spacetime.
In the 60s, Stephen Hawking and Roger Penrose predicted that an even denser star would contract into a point of infinite density and hence spacetime curvature, a point where all known laws of physics break down.