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If, Venus had started out at Mars' position, it is possible it would've ended up evolving into an ice giant. At the greater distance of Mars the Sun's solar wind is weaker and would've stripped off much less of Venus' atmosphere, even in comparison to the amount Earth lost, as Earth is considerably closer to the Sun than Mars. So, Venus would perhaps have ...


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Since this has gone unanswered, I'm going to give it a shot. Probably the answer is no. We know that on some moons, volcanic eruptions do send material into space. Enceladus for example, feeds Saturn's E-ring. It regularly shoots about 200 KG per second into space. The other highly volcanic moon in our solar system is Io which shoots material high ...


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The Exomars rover of ESA and Roscosmos would be the obvious answer. To be launched in 2018. It will drill 2 meters deep and as far I know is the only mission since the Vikings in the 1970's, to explicitly be equipped to find biosignatures, signs of life. But the Russians, who will land the rover, have had a very poor Mars mission success rate, ESA cooperates ...



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