Besides junk. What has your rocket brought back?

Thank you very much, Happy Gamer 73, for the detailed reply. I received an initial message after my first launch. And then I also remember that I did receive one message that said I received debris. But it doesn't seem like I have received that message after all of my successful launches. But I've only had 4 successful launches, everything else crashed and burns. And I've only received the debris thus far.

But I did purchase a mini nuke back when they were originally released, which I now decorate with the shop near Herman's Antique. I wonder if that will have any effect on my chances of receiving a second nuke. I would love to have another one.