“Look what I found,” he said. He picked up a shiny silver disk. “It’s a coin,” he said. “I thought they all melted.” “Nah, some metal survived. I’m not sure why,” she said. They looked at riot of green that covered the land as far as they could see. “I wish we knew more about them,” he said. “Me too,” she said. “It’s sad. Almost everything we know came from those electromagnetic waves we received. I wish we could have met them.”