Noahs Flood
Everybody doughts Noahs flood. My theory is the large astreriod smashed into Mars with a huge explosion. Blasting the top of the planet off along with its water. The water was blasted into outer space where the gravity of the sun caught it pulling toward the sun very slowly. Eventually crossing paths with the earth flooding it! The water eventually soaked into the ground, into underground caverns and into the mantle, also creating the underground water table. Also blasting away mars oxygen atmosphere. That is why the only water on Mars now is underground, In wamer planet cycles the underground water bubbles up from the ground creating the channels we now see on Mars. I could have been even possible that highly advanced humans lived on mars at one time escaping to earth before the collision.
Maybe one day science will prove my theory right?