On Earth where I'm from, we used up all of our resources to the point where we had to start seeking out other planets to salvage them from. It's called Plant Cracking because they basically take chunks of the planet and send it into orbit, so the ship can catch it in orbit and bring it on board to extract the resources.

It's a lengthy process that can take up to five years to complete.

[Isaac likes talking about space...a lot. Feels a lot closer to home that way.]