As a civilization, we currently just don't have the industrial might to make terraforming a reality.
Even when the idea of terraforming Mars was originally put forward, the idea was daunting. Changing the environment of an entire planet is not something to do easily. Over the following decades, ...
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Science Unbound on MSN
How turning Mars into a second Earth could take thousands of years
Terraforming Mars would require creating a breathable atmosphere, warming the planet, and maintaining stable ecosystems — a task beyond current technology.
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