I have a lot of headcanons involving Edolas BixLu. I did plan on having a series dedicated to them a little while ago, but so far I haven't had the time to work on it. TLDR; Edolas Bickslow is a giant fucking nerd (like unbelievable so) and has pet rats. Maybe one day I'll actually get to work on them some more.
Terraform
"To alter the environment of (a celestial body) in order to make capable of supporting terrestrial lifeforms."
"Bicks, it's an alien planet. By definition, we're not going to live on it."
Bickslow sighed, ignoring one of the many rats that were crawling over and around him, gently pushing his glasses back up when one of them decided the pull on the arm. "We're not going to," he agreed. "But someone is going to, at least at some point."
"How?" Lucy groaned. It was disturbing how many times they'd had that conversation, or at least some variant of it. "Last I checked, this was the only planet humans are able to survive on."
"Not necessarily. Find a suitable planet, terraform it a bit, and it can be a perfectly viable option for human inhabitance. And, I for one think it would be fucking awesome to live on an alien planet." Although, perhaps that was because he didn't particularly like Edolas all that much. Too many people there, most of which he couldn't actually talk to because they all had the mental maturity of a three year old.
Lucy could only blink, staring at him for a few moments in utter astonishment. "My god, you're the biggest dork in all of Edolas," she muttered. She'd already known that of course - she'd known that long before they'd gotten together - but sometimes it blew her out of the water how much of a nerd he was. Perhaps it was because she could, in fact, picture Bickslow loving to live on an alien-inhabited planet.
"Yes," Bickslow agreed. "But, you did marry me, so that, by definition, would mean that you like that."