False, any theory is a theory of science if it is based upon observation and recording of events.
WRONG. Science does not use supporting evidence at all. Supporting evidence proves nothing. Observations themselves are not proofs. All observations are subject to the problems of phenomenology. They are evidence only.
The only difference between a theory and a theory of science is the test of falsifiability. That means a null hypothesis of that theory must be constructed, a test developed it, and conducted. That test must be available, practical, specific, and produce a specific result. Science has no theories about past unobserved events. You can't go back in time to test the null hypothesis of such a theory.
The big bang is based upon cosmic background radiation, expanding mass, redshifting of electromagnetic radiation, mathematics,
and the observed expansion as well as laws of gravity all utilizing computers, long baseline interferometry observing deep space objects that emit radio waves etc etc..
Science does not use supporting evidence. Religion does, though.
No, it is not. It is not a falsifiable theory.
All the science appears consistent with an initial singularity
of all known matter and energy in the universe.
Supporting evidence is not used in science.
It is a scientific theory,
No, it is not. It is not falsifiable.
Essentially yes, it is a hunch. It is a circular argument.
It is a religion. A religion is any circular argument with arguments extending from it. The other word for the circular argument is 'faith'.
or goofy astral projection of man.
Religions do not require astral projection of anything. They do not even require a god or gods. ALL religions are based on some initial circular argument, then make extended arguments from that initial argument. The circular argument by itself is not a fallacy. Failure to recognize it is, however. That is what a fundamentalist does. They are people that make circular argument fallacies by trying to prove their religion.