Early Mars didn’t have enough CO2 to keep water liquid, Curiosity finds
Enlarge / Mars at the boundary between night and day. Gale Crater is the crater with a mound inside it near the center of the image, beginning to catch morning light. Northward is to the left. This view was created using three-dimensional information from the Mars Orbiter Laser Altimeter, which flew on NASA's Mars Global Surveyor orbiter. NASA/JPL-Caltech...
I regard the brain as a computer which will stop working when its component fail. There is no heaven or afterlife for broken-down computers. That is a fairy story for people afraid of the dark