District 9 Extra-terrestrials,who otherwise walk around in the nude and display signs of barbarism are actually more intelligent than a rocket-scientist and have an array of hi-tech gadgets at their disposal. (2) Comments
There might be not *enough* oxygen for humans. After all, humans have masks with filters, but no air cylinders, which suggests that there is oxygen in the atmosphere, but also some other gases or particulates that need to be filtered out.
Avatar The most suitable name you can give a resource you want , which is very hard to obtain and commands a high price is Unobtainium (4) Comments