We do not know how the universe began, or what the exact sequence of events were.
Well, a singularity is part of a black hole. Although no-one really knows what existed before, a likely explanation is that every black hole contains another universe. So when our black hole was created, we were too.
No the singularity is at the core of the black hole.
The Big Bang theory does indeed suggest that the begining of the Universe was a singularity - an infintesimally small region where the entrie Unverse was concentrated. A singularity is also thought to be at the centre of a black hole.
No, they are not the same. A singularity would be inside a black hole.
If it had a radius, then it wouldn't be a singularity. The event-horizon surrounding a black hole has a radius, which depends on the black hole's mass. But the singularity itself has no radius.
It is not known what happens to matter inside a black hole. The point of origin of the universe is currently believed to be the Big Bang, which is different from a black hole. The gravitational pull of a black hole is so strong that matter is compressed to a point of infinite density at the singularity, according to general relativity.
A white dwarf is a white hot solid ball of nickel-iron alloy, a black hole is an infinitesimal singularity of infinite density surrounded by total emptiness.
singularity
Into the black hole's singularity.
A singularity is at the centre of a black hole.
a black and white hole
Not exactly. The singularity is in the center of the black hole. Somewhat like a peach pit is in the center of the peach but it isn't the peach but part of it.