Early Mars didn’t have enough CO2 to keep water liquid, Curiosity finds – Ars Technica


Ars Technica
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 …
Could there have been water on Mars without CO2?Christian Science Monitor
Scientists can’t seem to figure out how ancient Mars got so warmThe Verge
NASA really isn’t sure why ancient Mars was wetEngadget
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