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kerfitten1234 t1_j8rewyz wrote

Reply to comment by zolikk in Terraforming a magnetosphere possible? by Pornelius_McSucc

Venus wouldn't be quite that simple. Water vapor is a greenhouse gas. Any attempt to add water to Venus would cause it's temperature to go up, not down. You'd have to cool Venus down first, then add water.

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drgath t1_j8rurkx wrote

Out of curiosity, what ways exist to cool down a planet like Venus, if you can’t just add lots of ice?

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kerfitten1234 t1_j8rvx4o wrote

Put a ring on it to shade the surface. A polar ring at about the right altitude might also give it a more earthlike day/night cycle.

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