"I think so," said Aldi. "Perhaps, those scientists haven't been able to analyze all the minerals or materials available on this planet alone, I don't know."
"You're saying that's why they used the rubble for recycling?"
"More or less," Aldi shrugged his shoulders. "I saw they had three melting pools. One is pretty clear for me as a melting metal material, the other is glass. The other one, hmm… I'm not sure about it, could be for the plastic or something else."
"Oh, I see?"
Aldi turned around, he lay face down. "Debris in that outer orbit, due to a few destroyed spacecraft, dozens, maybe even hundreds."
"Yeah, that's what I thought the first time we were going down to this planet."
"All I can think of," said Aldi. "Perhaps, a war ever happened here—I mean, in this outer orbit of the planet."
"A war?"
