Except Titan likely has more water on it than Earth. Therefore unless we’re a fluke of a solar system planetary bodies with water on them should be extremely common.
Mars is further out in the solar system, and I'm assuming it was further out than Theia when the collision occurred.
The article doesn't say no planets can have water, but just that originally Earth was too close to the Sun to have liquid water. Theia, according to this hypothesis, was not.
lukan|4 months ago
(Also Mars could have been also hit.)
oceanplexian|4 months ago
hn_throwaway_99|4 months ago
The article doesn't say no planets can have water, but just that originally Earth was too close to the Sun to have liquid water. Theia, according to this hypothesis, was not.
gitaarik|4 months ago