If we terraform mars, isn't the dirt still toxic?
No, as terraforming means changing that.
Whether it is really possible, is a different question, but after you have an atmosphere, you could have engineered microorganism processing the soil etc.
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No, as terraforming means changing that.
Whether it is really possible, is a different question, but after you have an atmosphere, you could have engineered microorganism processing the soil etc.