[ he can see that sadness. it makes his chest ache a bit to see it, and he moves to adjust his glasses as he tips his head down a bit. he never knew enough about earth to be able to feel that kind of loss, but. planets don't always last forever, do they, doctor. ]

There was an incident with the fleet, and we emergency-crash landed down onto a planet that the people dubbed Noman's land. It's ... pretty unsuitable for human life, and were it not for the Plants on board the ships, it's likely noone would have survived.

With enough time and effort, the planet could be made sufficient, but. It's going to take a long time, and humans live pretty short lives, you know.

[ he gives a dry little chuckle. ]

If I'm honest with you, Doc. Not much. I never lived there, and I only had books and videos, and the stories from the woman who raised me and my brother to go off.
I guess all this--[ he gestures to the Gallifrey the Doctor has created. ] is pretty much the closest i've ever gotten to something like it.