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Both Venus and Mars have good odds of having had liquid water oceans in the past. From what I understand, Venus would possibly be habitable today if it had a ca
by jarin 15y ago
Both Venus and Mars have good odds of having had liquid water oceans in the past. From what I understand, Venus would possibly be habitable today if it had a carbon cycle and planetary magnetic field to prevent the runaway greenhouse effect.
- VladRussian 15y agoit allows to imagine that something could be a "life" in Venus like conditions as well: "Scientists once thought that no living thing could survive the harsh combination of toxic chemicals, high temperatures, high pressures, and total darkness at these vents. " "Vent bacteria use hydrogen sulfide as their energy source instead of sunlight. " http://seawifs.gsfc.nasa.gov/OCEAN_PLANET/HTML/ps_vents.html http://seawifs.gsfc.nasa.gov/OCEAN_PLANET/HTML/ps_vents.html