After watching another episode of Strip the Cosmos I have yet again started to think of even more possibilities. This weeks episode was about asteroids. It found that many of them carry water which gives the ability to use them to refuel travelling ships on longer trips.
It showed that one asteroid had more water than all the water on earth. So my mind started to think that if this was to crash into a planet, for example Mars. It could populate the whole planet with water. Yes this might take a long time before the whole planet settles. But this could lay down the foundation for terraforming a planet.
Again, this is probably not scientifically possible. But just a random thought that watching this amazing series made me think.