Zeona has a thin atmosphere of sulfur dioxide and trioxide, created by volcanic outgassing. There are traces of water vapor in the atmosphere, but over the last five centuries of observation particle counts have decreased 4%.

The way to open it, then, is to turn the key the other way, as if to overlock the bolt […]

The newcomer brashly engaged the veteran player mano a mano.

It is difficult to imagine anyone disbelieving that machines fly safely and regularly around the world, but how many people believe that robots will eventually be programmed to shear sheep or that sheep will be fed a pill to defleece them?