We have a collection of predictive testable hypotheses which authenticate physical evidence of Noah's flood with the account in scripture. In science a collection of hypotheses which support a premise is called a theory.
The Martian landscape has been observed since the first telescopes and the cause of its evident erosion features is the source of scientific speculation which is an early foray into the world of SciFi.
Noah spent about 100 years building the ark. He preached to the people of his day to warn them about the impending flood. He thought that he was building the ark to save people. They thought that he was off his rocker.
The creation of gravity caused the majority of the darkness and corruption in the universe to accumulate at the center of creation. This became the body of the Earth. The majority of light and purity accumulated in heaven.
Noah's flood was not only a world-wide catastrophe, it was also a process which involved several stages. It gives us a way to account for the stratigraphic column, Cambrian through Quaternary.
The Biblical history of hell expanding has 9 eras that bring us to the present day. The Millennial Kingdom is the 10th.