when the sun passes through the dark center of the milky way - which only happens once every 26,000 yrs.
hmmm.... bringing back to biblical times, 26,000 yrs ago would put it to about the time of the great flood and Noah's Ark.
Guess I should start working on a boat.
slam me if you must: creative as the stories may be - i do not believe one word the bible says, except perhaps its fine suggestions that i should not cheat, steal, covet or kill.
however, a great flood is part of history for more than one culture (inca, hopi, aborigine, masai...) which gives it a bit of credibility of actually occurring.
a more scientific theory is that a large meteor/asteroid passed very (too) close to the earth, messing with the gravitational pull, causing the sea to pull up (multiple tsunamis), amongst other not so nice natural events.