Haiku in a
sci-fi setting - the
kigos in
extraterrestrial atmosphere with varying numbers of moons and stars can really get interesting.
Void mariners
riding the solar zephyr
Dandelion seed
On junkyard planet
scanning for its lost master
Little robot roams
Both examples from David Niedens, he has a homepage at http://people.ce.mediaone.net/twilite/taliesin/scifaiku.html, and there's more at http://www.scifaiku.com.