"it lost most of its atmosphere for reasons not yet discovered"
I thought we had the bastard responsible - is it not a combination of not enough gravity and no volcanism? Not enough mass to keep it all from boiling off and nothing to replenish it?
I thought we had the bastard responsible - is it not a combination of not enough gravity and no volcanism? Not enough mass to keep it all from boiling off and nothing to replenish it?