@Heather Yes, but the planet was dying and they left it. It would only be fair to guess that since there was nobody left to care for it, it is now a dead planet. We have no idea how much time passed from their departure of the homeworld until they crashed on Abode. We have reports on how Mars once could have supported life, but now it would take a great deal to make it inhabitable again. Of course, with plant shapers and rock shapers, it might be easier to resurrect the dead world.